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The Course of Logic
The Course of Logic

Chapter I

Chapter 1 of The Course of Logic is here in full — 400 sentences across 80 reading sections, with audio for every sentence and word.

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Context Illustration Reading 1/80 · 5 lines
English subtitles · tap any word to listen 1 / 5
They made one little mistake--very natural--and disastrous!
The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.
Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.
It was warm blooded, despite its vaguely reptilian appearance.
Only meat could satisfy its need for energy.
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LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

The Course of Logic

Chapter I

Chapter 1 of The Course of Logic is here in full — 400 sentences across 80 reading sections, with audio for every sentence and word.

Reading 1/80 · 5 reading units · Lines 1–5

Line 1
They made one little mistake--very natural--and disastrous!
Line 2
The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.
Line 3
Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.
/ɪts θriː ˈhʌndrəd tʌnz ʌv ˈmæsɪv ˈbɑːdi ʃʊk ðə ɡraʊnd æz ðə ɡreɪt haɪnd leɡz θʌmpt əˈlɔːŋ ənd ˈevəri sel ʌv ɪt eɪkt wɪð ˈhʌŋɡər/
Line 4
It was warm blooded, despite its vaguely reptilian appearance.
/ɪt wɑːz wɔːrm ˈblʌdɪd dɪˈspaɪt ɪts ˈveɪɡli repˈtɪljən əˈpɪrəns/
Line 5
Only meat could satisfy its need for energy.
/ˈoʊnli miːt kʊd ˈsætəsfaɪ ɪts niːd fɔːr ˈenərdʒi/

Learner Dictionary

These definitions explain words found in the current reading and keep every example grounded in its original sentence.

Oxford-style entry order: headword, part of speech, US IPA, concise definition, contextual example, and audio.

ached verb US /eɪkt/

past form of “ache” — feel physical pain

From this reading “Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.”

blooded adjective US /ˈblʌdɪd/

of unmixed ancestry

From this reading “It was warm blooded, despite its vaguely reptilian appearance.”

disastrous adjective US /dɪˈzæstrəs/

(of events) having extremely unfortunate or dire consequences; bringing ruin

From this reading “They made one little mistake--very natural--and disastrous!”

plodded verb US /ˈplɑːdɪd/

inflected form of “plod” — walk heavily and firmly, as when weary, or through mud

From this reading “The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.”

reptilian noun US /repˈtɪljən/

any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms

From this reading “It was warm blooded, despite its vaguely reptilian appearance.”

scrub verb US /skrʌb/

clean with hard rubbing

From this reading “The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.”

thumped verb US /θʌmpt/

past form of “thump” — move rhythmically

From this reading “Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.”

uproot verb US /əˈpruːt/

move (people) forcibly from their homeland into a new and foreign environment

From this reading “The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.”

Word partnerships in these lines

English keeps certain words together, and knowing the pair is worth more than knowing each word alone. Every partnership below was counted across our whole published library, and earns its place by appearing far more often than two unrelated words of the same frequency would.

Shown as this reading writes them, with the form the library counts, what kind of pairing it is, and how often it occurs.

hind legs noun + noun

In this reading “Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.”

hundred tons noun + noun

In this reading “Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.”

sixty miles adjective + noun counted as “sixty mile”

In this reading “The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.”

three hundred noun + noun

being one hundred more than two hundred

In this reading “Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.”

long enough adjective + noun

In this reading “The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.”

with hunger preposition + noun

In this reading “Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.”

All words in this reading · 68

Every word in these five lines is listed here, and every one of them can be played on its own.

Dictionary details are shown only when verified; these are not licensed Oxford entries.

achedverbUS /eɪkt/

past form of “ache” — feel physical pain

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

alongprepositionUS /əˈlɔːŋ/

following the length of something from one end toward the other

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

andeterminerUS /æn/

the form of “a” used before a word that begins with a vowel sound

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

andconjunctionUS /ənd/

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

From this reading They made one little mistake--very natural--and disastrous!

appearancenounUS /əˈpɪrəns/

outward or visible aspect of a person or thing

From this reading It was warm blooded, despite its vaguely reptilian appearance.

asconjunctionUS /æz/

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

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

atprepositionUS /æt/

in or near a particular place or position

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

bloodedadjectiveUS /ˈblʌdɪd/

of unmixed ancestry

From this reading It was warm blooded, despite its vaguely reptilian appearance.

bodynounUS /ˈbɑːdi/

the entire physical structure of an organism (an animal, plant, or human being)

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

cellnounUS /sel/

A small stone room in a prison where an inmate is locked behind iron bars.

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

couldmodal verbUS /kʊd/

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

From this reading Only meat could satisfy its need for energy.

despiteprepositionUS /dɪˈspaɪt/

although something is true; in spite of

From this reading It was warm blooded, despite its vaguely reptilian appearance.

directlyadverbUS /dərˈektli/

without deviation

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

disastrousadjectiveUS /dɪˈzæstrəs/

(of events) having extremely unfortunate or dire consequences; bringing ruin

From this reading They made one little mistake--very natural--and disastrous!

downadjectiveUS /daʊn/

being or moving lower in position or less in some value

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

energynounUS /ˈenərdʒi/

(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs

From this reading Only meat could satisfy its need for energy.

enoughnounUS /ɪˈnʌf/

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

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

everydeterminerUS /ˈevəri/

all the members of a group, with none left out

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading Only meat could satisfy its need for energy.

forwardadverbUS /ˈfɔːrwərd/

at or to or toward the front

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

greatadjectiveUS /ɡreɪt/

relatively large in size or number or extent; larger than others of its kind

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

groundnounUS /ɡraʊnd/

the solid part of the earth's surface

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

hindnounUS /haɪnd/

any of several mostly spotted fishes that resemble groupers

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

hournounUS /ˈaʊər/

a period of time equal to 1/24th of a day

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

hundrednounUS /ˈhʌndrəd/

ten 10s

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

hungernounUS /ˈhʌŋɡər/

a physiological need for food; the consequence of food deprivation

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

inprepositionUS /ɪn/

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

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

itsdeterminerUS /ɪts/

belonging to the thing or animal already mentioned

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

legsnounUS /leɡz/

staying power

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

littleadjectiveUS /ˈlɪtəl/

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

From this reading They made one little mistake--very natural--and disastrous!

longadjectiveUS /lɔːŋ/

primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

madeadjectiveUS /meɪd/

produced by a manufacturing process

From this reading They made one little mistake--very natural--and disastrous!

malenounUS /meɪl/

an animal that produces gametes (spermatozoa) that can fertilize female gametes

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

massiveadjectiveUS /ˈmæsɪv/

imposing in size or bulk or solidity

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

meatnounUS /miːt/

the flesh of animals (including fishes and birds and snails) used as food

From this reading Only meat could satisfy its need for energy.

milesnounUS /maɪlz/

plural of “mile” — a unit of length equal to 1,760 yards or 5,280 feet; exactly 1609.344 meters

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

mistakenounUS /mɪˈsteɪk/

a wrong action attributable to bad judgment or ignorance or inattention

From this reading They made one little mistake--very natural--and disastrous!

naturaladjectiveUS /ˈnætʃərəl/

in accordance with nature; relating to or concerning nature

From this reading They made one little mistake--very natural--and disastrous!

neednounUS /niːd/

a condition requiring relief

From this reading Only meat could satisfy its need for energy.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading They made one little mistake--very natural--and disastrous!

onlyadverbUS /ˈoʊnli/

and nothing more

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

pathnounUS /pæθ/

a course of conduct

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

pausingverbUS /ˈpɔːzɪŋ/

-ing form of “pause” — interrupt temporarily an activity before continuing

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

ploddedverbUS /ˈplɑːdɪd/

inflected form of “plod” — walk heavily and firmly, as when weary, or through mud

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

rareadjectiveUS /rer/

not widely known; especially valued for its uncommonness

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

reptiliannounUS /repˈtɪljən/

any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms

From this reading It was warm blooded, despite its vaguely reptilian appearance.

satisfyverbUS /ˈsætəsfaɪ/

meet the requirements or expectations of

From this reading Only meat could satisfy its need for energy.

scrubverbUS /skrʌb/

clean with hard rubbing

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

shooknounUS /ʃʊk/

a disassembled barrel; the parts packed for storage or shipment

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

silth

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

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

sixtyadjectiveUS /ˈsɪksti/

being ten more than fifty

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

ThedeterminerUS /ðə/

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

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

TheypronounUS /ðeɪ/

the people, animals, or things already mentioned, as the subject

From this reading They made one little mistake--very natural--and disastrous!

threenounUS /θriː/

the cardinal number that is the sum of one and one and one

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

thumpedverbUS /θʌmpt/

past form of “thump” — move rhythmically

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

toparticleUS /tuː/

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

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

tonsnounUS /tʌnz/

a large number or amount

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

treesnounUS /triːz/

plural of “tree” — a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

uprootverbUS /əˈpruːt/

move (people) forcibly from their homeland into a new and foreign environment

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

vaguelyadverbUS /ˈveɪɡli/

in a vague way

From this reading It was warm blooded, despite its vaguely reptilian appearance.

veryadjectiveUS /ˈveri/

precisely as stated

From this reading They made one little mistake--very natural--and disastrous!

warmadjectiveUS /wɔːrm/

having or producing a comfortable and agreeable degree of heat or imparting or maintaining heat

From this reading It was warm blooded, despite its vaguely reptilian appearance.

wasauxiliary verbUS /wɑːz/

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

From this reading It was warm blooded, despite its vaguely reptilian appearance.

wearilyadverbUS /ˈwerəli/

in a weary manner

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

withprepositionUS /wɪð/

in the company of; together with

From this reading Its three hundred tons of massive body shook the ground as the great hind legs thumped along, and every cell of it ached with hunger.

wolfnounUS /wʊlf/

any of various predatory carnivorous canine mammals of North America and Eurasia that usually hunt in packs

From this reading The male silth plodded forward wearily at sixty miles an hour, pausing only long enough to uproot and wolf down one of the rare scrub trees directly in its path.

Chapter 1 of The Course of Logic by Lester Del Rey holds 400 sentences, grouped into 80 reading sections of at most 5 sentences. The text is the source edition, unabridged, and the chapter records which sentences cover which part of the work so that nothing is dropped. Every word can be tapped for its pronunciation and dictionary entry.

What does chapter 1 of The Course of Logic contain?

Chapter 1 holds 400 sentences of The Course of Logic, unabridged, divided into 80 reading sections.

This page carries chapter 1 of The Course of Logic by Lester Del Rey exactly as it stands in the source edition, without abridgement. It runs to 400 sentences, grouped into 80 sections of at most 5 sentences so that a reader can take the chapter in steady, finishable pieces. The chapter also stores a coverage record mapping every one of its sentences to a part of the work, which is how the edition demonstrates that no line was dropped.

How do I study chapter 1 of The Course of Logic?

Work through the 80 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 80 sections in this chapter is short enough to read once, hear once, and then re-read with the vocabulary in view. Tapping a word plays it alone and opens its dictionary entry with IPA, part of speech and meaning, so the reader is never forced to guess a pronunciation from spelling. Working section by section keeps a long chapter from becoming an undifferentiated wall of text, which is the usual reason a reader abandons a work of this period.

Can chapter 1 be read aloud to me?

Yes — every sentence and every individual word in chapter 1 can be played aloud in United States English.

Audio covers the whole chapter: any sentence can be played, and any single word within it can be played on its own. The voice uses United States English. For a work of this period that matters, because spelling is an unreliable guide to pronunciation for vocabulary that has fallen out of daily use, and a learner who guesses wrong tends to keep the error. Hearing the word in its own sentence, and then alone, settles it.

Questions about reading The Course of Logic

Common questions about reading The Course of Logic by Lester Del Rey on this page, its source edition and its audio.

Is this the complete text of The Course of Logic?

Yes. All 400 sentences of Project Gutenberg eBook #61412 are kept, with a record of which sentences cover which part.

Which edition of The Course of Logic is used?

Project Gutenberg eBook #61412, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Course of Logic take to read?

About 33 minutes of reading across 80 sections of 5 sentences each, at an unhurried pace.

How to read The Course of Logic section by section

How to work through The Course of Logic section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 1 chapters of The Course of Logic to begin.

  2. Read one section

    Each section holds 5 sentences; read it once through.

  3. Listen and tap

    Play the section aloud, then tap any unfamiliar word for its entry.

Vocabulary met early in The Course of Logic

Words and structures a reader meets early in The Course of Logic, each tappable for pronunciation and meaning.

Little
A word that appears in the opening chapter of The Course of Logic; the reader can tap it to hear it and see its dictionary entry.
Mistake--very
A word that appears in the opening chapter of The Course of Logic; the reader can tap it to hear it and see its dictionary entry.
Natural--and
A word that appears in the opening chapter of The Course of Logic; the reader can tap it to hear it and see its dictionary entry.
Disastrous
A word that appears in the opening chapter of The Course of Logic; the reader can tap it to hear it and see its dictionary entry.