Chapter I

used before a singular noun to mean one of a group, when it is not a particular one

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

past form of “abound” — be abundant or plentiful; exist in large quantities

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

occurring with or following as a consequence

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

used to join words or parts of a sentence that go together

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

a living organism characterized by voluntary movement

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

plural of “animal” — a living organism characterized by voluntary movement

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

disposed or placed in a particular kind of order

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

at the same time that; because; in the way that

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

writes (books or stories or articles or the like) professionally (for pay)

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

used with a past participle to form the passive, or with -ing for continuous tenses

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

inflected form of “become” — enter or assume a certain state or condition

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

the past participle of “be”

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

plural of “bird” — warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

Bound written or printed works.

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

used to introduce something that contrasts with what came before

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

taking care or paying attention

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

definite but not specified or identified

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

a young person of either sex

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

indicating a lack of maturity

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

plural of “child” — a young person of either sex

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

arranged into classes

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

the body of faculty and students of a college

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

having color or a certain color; sometimes used in combination

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

the past of “can”; used for possibility or polite requests

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

education imparted in a series of lessons or meetings

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

serving to describe or inform or characterized by description

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

-ing form of “discard” — throw or cast away

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

the quality of being a hindrance

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

posing no difficulty; requiring little effort

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

plural of “engraving” — a print made from an engraving

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

past form of “enjoy” — derive or receive pleasure from; get enjoyment from; take pleasure in

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

an adequate quantity; a quantity that is large enough to achieve a purpose

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

to a distinctly greater extent or degree than is common

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

all the members of a group, with none left out

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

-ing form of “explain” — make plain and comprehensible

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

a small being, human in form, playful and having magical powers

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

plural of “family” — a social unit living together

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

the cardinal number that is the product of ten and five

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

make full, also in a metaphorical sense

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

plural of “fish” — any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

intended to be given to, or used by, somebody

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

the phonological or orthographic sound or appearance of a word that can be used to describe or identify something

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

set up or found

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

past form of “found” — set up or found

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

showing where something starts, or who sent it

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

the Hellenic branch of the Indo-European family of languages

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

the form of “have” used with he, she, it, or a singular noun

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

plural of “history” — the aggregate of past events

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

the aggregate of past events

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

ten 10s

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

plural of “illustration” — artwork that helps make something clear or attractive

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

inside something, or within a place, period, or state

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

-ing form of “include” — have as a part, be made up out of

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

having or showing interest; especially curiosity or fascination or concern

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

a thing, animal, or idea already mentioned

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

the psychological result of perception and learning and reasoning

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

a systematic means of communicating by the use of sounds or conventional symbols

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

happening at a time subsequent to a reference time

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

of or relating to the ancient Latins or the Latin language

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

a characteristic state or mode of living

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

limited or below average in number or quantity or magnitude or extent

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

plural of “mammal” — any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

a vaguely specified concern

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

come together

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

inflected form of “meet” — come together

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

in accordance with nature; relating to or concerning nature

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

absolutely essential

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

used to make a word, phrase, or sentence negative

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

not one thing; not anything

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

amounting to a large indefinite number

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

belonging to, or connected with, somebody or something

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

(used especially of persons) having lived for a relatively long time or attained a specific age

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

touching and supported by a surface

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

used to mean any person in general, including the speaker

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

plural of “one” — the smallest whole number or a numeral representing this number

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

above and across; more than

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

(plural) any group of human beings (men or women or children) collectively

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

plural of “phrase” — an expression consisting of one or more words forming a grammatical constituent of a sentence

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

plural of “plate” — (baseball) base consisting of a rubber slab where the batter stands; it must be touched by a base runner in order to score

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

a full supply

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

a short introductory essay preceding the text of a book

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

made ready or fit or suitable beforehand

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

produced or growing in extreme abundance

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

marked by suitability or rightness or appropriateness

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

the cognitive process of understanding a written linguistic message

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

in accordance with truth or fact or reality

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

plural of “requirement” — required activity

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

an educational institution

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

of or relating to the practice of science

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

a detailed critical inspection

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

carry out

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

plural of “tale” — a message that tells the particulars of an act or occurrence or course of events; presented in writing or drama or cinema or as a radio or television program

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

used to introduce what somebody said, thought, or felt

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

used before a noun that is already known, already mentioned, or the only one of its kind

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

in or at that place or location

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

the plural of “this”: the people or things near, or just mentioned

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

used for a person or thing that is near, or that has just been mentioned

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

used before the base form of a verb to make the infinitive

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

not necessary

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

up to a particular time

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

being or moving higher in position or greater in some value; being above a former position or level

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

occurring or encountered or experienced or observed frequently or in accordance with regular practice or procedure

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

the amount of 3-dimensional space occupied by an object

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

feel or have a desire for; want strongly

From this reading This little Volume of Natural History has been prepared to fill a long-felt want.

the past form of “be” used with I, he, she, it, or a singular noun

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

the past form of “be” used with you, we, they, or a plural noun

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

at the time that

From this reading It was not until later in school life, when a certain knowledge of Greek and Latin became necessary in the college-preparatory course that these scientific works could be really enjoyed.

used to introduce a clause giving more about a thing just mentioned

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

including all components without exception; being one unit or constituting the full amount or extent or duration; complete

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

in the company of; together with

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

the hard fibrous lignified substance under the bark of trees

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.

the words that are spoken

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

buildings for carrying on industrial labor

From this reading Natural Histories abounded in every form and in every language, there were scientific works in plenty, and numerous books for children, from the fairy tales founded on animal life to the usual descriptive matter accompanying profuse illustrations in childish books; but nothing could be found in which the Mammals, Birds and Fishes, were carefully classified and arranged in the proper families, and the whole in words of easy reading—discarding unnecessary scientific words and phrases, and carefully explaining the necessary ones.

but in spite of that

From this reading As a child the author was especially interested in the study of animals, but met with the usual drawback—nothing could be found in classified form to meet the requirements of young people, not yet old enough to take up a college course of study.

(used of living things especially persons) in an early period of life or development or growth

From this reading A Natural History for Young People Over One Hundred and Fifty Illustrations, including Colored Plates, Half-Tones and Wood Engravings PREFACE.