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The Boys' Book of Submarines
The Boys' Book of Submarines

Chapter IV

Chapter 4 of The Boys' Book of Submarines is here in full — 95 sentences across 19 reading sections, with audio for every sentence and word.

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Context Illustration Reading 1/19 · 5 lines
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THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.
As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.
For this reason, all the early and even some of the later submarines were powered with steam engines.
=What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:
(1) It must be as small and as light as possible and still have great strength.
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LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

The Boys' Book of Submarines

Chapter IV

Chapter 4 of The Boys' Book of Submarines is here in full — 95 sentences across 19 reading sections, with audio for every sentence and word.

Reading 1/19 · 5 reading units · Lines 1–5

Line 1
THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.
Line 2
As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.
/æz ðə stiːm ˈendʒən wɑːz ˌɪmˈpruːvd əˈpɑːn ɪts ˈvæljuː fɔːr ˈdraɪvɪŋ ˈsʌbməriːnz bɪˈkeɪm ˈbetər θɔːt ʌv baɪ ˌɪnˈventərz nɑːt bɪˈkɔːz ɪt wɑːz æt ɔːl ˈsuːtəbəl fɔːr ðə ˈpɜːrpəs bʌt ɪn ˈvɝː.tʃuː ʌv ðə fækt ðæt ɪt wɑːz ðə fɜːrst ənd fɔːr ə lɔːŋ taɪm ðə ˈoʊnli ˈpræktəkəl skiːm tuː prəˈduːs ˈpaʊər ɑːn ə lɑːrdʒ skeɪl/
Line 3
For this reason, all the early and even some of the later submarines were powered with steam engines.
/fɔːr ðɪs ˈriːzən ɔːl ðə ˈɜːrli ənd ˈiːvɪn sʌm ʌv ðə ˈleɪtər ˈsʌbməriːnz wɜːr ˈpaʊərd wɪð stiːm ˈendʒənz/
Line 4
=What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:
Line 5
(1) It must be as small and as light as possible and still have great strength.

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.

engines noun US /ˈendʒənz/

plural of “engine” — motor that converts thermal energy to mechanical work

From this reading “For this reason, all the early and even some of the later submarines were powered with steam engines.”

inventors noun US /ˌɪnˈventərz/

plural of “inventor” — someone who is the first to think of or make something

From this reading “As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.”

powered adjective US /ˈpaʊərd/

(often used in combination) having or using or propelled by means of power or power of a specified kind

From this reading “For this reason, all the early and even some of the later submarines were powered with steam engines.”

propelled verb US /prəˈpeld/

inflected form of “propel” — cause to move forward with force

From this reading “THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.”

strides noun US /straɪdz/

plural of “stride” — a step in walking or running

From this reading “THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.”

submarine noun US /ˈsʌbməriːn/

a submersible warship usually armed with torpedoes

From this reading “THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.”

submarines noun US /ˈsʌbməriːnz/

plural of “submarine” — a submersible warship usually armed with torpedoes

From this reading “As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.”

underwater adjective US /ˈʌndərwɔːtər/

beneath the surface of the water

From this reading “THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.”

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.

steam engine verb + noun

external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder

In this reading “As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.”

large scale adjective + noun

In this reading “As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.”

submarine boat noun + noun

In this reading “=What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:”

long time adjective + noun

a prolonged period of time

In this reading “As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.”

for the purpose preposition + article + noun counted as “for … purpose”

In this reading “As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.”

certain things adjective + noun

In this reading “=What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:”

present day verb + noun

In this reading “THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.”

great strength adjective + noun

In this reading “(1) It must be as small and as light as possible and still have great strength.”

All words in this reading · 95

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.

1

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

From this reading (1) It must be as small and as light as possible and still have great strength.

adeterminerUS /ə/

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

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

alladjectiveUS /ɔːl/

(quantifier) used with either mass or count nouns to indicate the whole number or amount of or every one of a class

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

amongprepositionUS /əˈmʌŋ/

surrounded by; in the middle of a group

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

andeterminerUS /æn/

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

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

andconjunctionUS /ənd/

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

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

areauxiliary verbUS /ɑːr/

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

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

AsconjunctionUS /æz/

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

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

atprepositionUS /æt/

in or near a particular place or position

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

beauxiliary verbUS /biː/

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

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

becameverbUS /bɪˈkeɪm/

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

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

becauseconjunctionUS /bɪˈkɔːz/

for the reason that

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

beenauxiliary verbUS /bɪn/

the past participle of “be”

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

betteradjectiveUS /ˈbetər/

(comparative of “good”) superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

boatnounUS /boʊt/

a small vessel for travel on water

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

butconjunctionUS /bʌt/

used to introduce something that contrasts with what came before

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

byprepositionUS /baɪ/

showing who or what does the action

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

certainadjectiveUS /ˈsɜːrtən/

definite but not specified or identified

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

chiefnounUS /tʃiːf/

a person who is in charge

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

daynounUS /deɪ/

time for Earth to make a complete rotation on its axis

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

doauxiliary verbUS /duː/

used to form questions and negatives, and to give emphasis

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

drivingadjectiveUS /ˈdraɪvɪŋ/

having the power of driving or impelling

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

earlyadjectiveUS /ˈɜːrli/

at or near the beginning of a period of time or course of events or before the usual or expected time

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

enginenounUS /ˈendʒən/

motor that converts thermal energy to mechanical work

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

enginesnounUS /ˈendʒənz/

plural of “engine” — motor that converts thermal energy to mechanical work

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

evenadjectiveUS /ˈiːvɪn/

divisible by two

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

factnounUS /fækt/

a piece of information about circumstances that exist or events that have occurred

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

firstadjectiveUS /fɜːrst/

preceding all others in time or space or degree

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

GoodadjectiveUS /ɡʊd/

having desirable or positive qualities especially those suitable for a thing specified

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

greatadjectiveUS /ɡreɪt/

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

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

haveauxiliary verbUS /hæv/

used with a past participle to form the perfect tenses

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

HEARTnounUS /hɑːrt/

the locus of feelings and intuitions

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

improvedadjectiveUS /ˌɪmˈpruːvd/

made more desirable or valuable or profitable; especially made ready for use or marketing

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

inprepositionUS /ɪn/

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

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

inventorsnounUS /ˌɪnˈventərz/

plural of “inventor” — someone who is the first to think of or make something

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

Isauxiliary verbUS /ɪz/

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

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

itsdeterminerUS /ɪts/

belonging to the thing or animal already mentioned

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

largeadjectiveUS /lɑːrdʒ/

above average in size or number or quantity or magnitude or extent

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

lateradverbUS /ˈleɪtər/

happening at a time subsequent to a reference time

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

lightadjectiveUS /laɪt/

of comparatively little physical weight or density

From this reading (1) It must be as small and as light as possible and still have great strength.

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 As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

madeadjectiveUS /meɪd/

produced by a manufacturing process

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

makeverbUS /meɪk/

engage in

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

methodsnounUS /ˈmeθədz/

plural of “method” — a way of doing something, especially a systematic way; implies an orderly logical arrangement (usually in steps)

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

mustmodal verbUS /mʌst/

used to say something is necessary, or almost certainly true

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

OFprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

onprepositionUS /ɑːn/

touching and supported by a surface

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

onesnounUS /wʌnz/

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

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

onlyadverbUS /ˈoʊnli/

and nothing more

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

perfectadjectiveUS /pərˈfekt/

being complete of its kind and without defect or blemish

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

plantverbUS /plænt/

put or set (seeds, seedlings, or plants) into the ground

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

possibleadjectiveUS /ˈpɑːsəbəl/

capable of happening or existing

From this reading (1) It must be as small and as light as possible and still have great strength.

powernounUS /ˈpaʊər/

possession of controlling influence

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

poweredadjectiveUS /ˈpaʊərd/

(often used in combination) having or using or propelled by means of power or power of a specified kind

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

practicaladjectiveUS /ˈpræktəkəl/

concerned with actual use or practice

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

presentverbUS /ˈprezənt/

give an exhibition of to an interested audience

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

produceverbUS /prəˈduːs/

bring forth or yield

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

propelledverbUS /prəˈpeld/

inflected form of “propel” — cause to move forward with force

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

purposenounUS /ˈpɜːrpəs/

an anticipated outcome that is intended or that guides your planned actions

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

reasonnounUS /ˈriːzən/

a rational motive for a belief or action

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

scalenounUS /skeɪl/

an ordered reference standard

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

schemenounUS /skiːm/

an elaborate and systematic plan of action

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

seemsverbUS /siːmz/

third-person singular of “seem” — give a certain impression or have a certain outward aspect

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

SINCEprepositionUS /sɪns/

from a time in the past until now

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

smalladjectiveUS /smɔːl/

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

From this reading (1) It must be as small and as light as possible and still have great strength.

someadjectiveUS /sʌm/

(quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

steamverbUS /stiːm/

travel by means of steam power

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

stilladjectiveUS /stɪl/

not in physical motion

From this reading (1) It must be as small and as light as possible and still have great strength.

strengthnounUS /streŋkθ/

the property of being physically or mentally strong

From this reading (1) It must be as small and as light as possible and still have great strength.

stridesnounUS /straɪdz/

plural of “stride” — a step in walking or running

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

SUBMARINEnounUS /ˈsʌbməriːn/

a submersible warship usually armed with torpedoes

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

submarinesnounUS /ˈsʌbməriːnz/

plural of “submarine” — a submersible warship usually armed with torpedoes

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

suitableadjectiveUS /ˈsuːtəbəl/

meant or adapted for an occasion or use

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

THEdeterminerUS /ðə/

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

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

ThereadverbUS /ðer/

in or at that place or location

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

thingsnounUS /θɪŋz/

any movable possession (especially articles of clothing)

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

thisdeterminerUS /ðɪs/

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

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

thoughtnounUS /θɔːt/

the content of cognition; the main thing you are thinking about

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

timenounUS /taɪm/

an instance or single occasion for some event

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

toparticleUS /tuː/

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

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

underwateradjectiveUS /ˈʌndərwɔːtər/

beneath the surface of the water

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

untilprepositionUS /ənˈtɪl/

up to a particular time

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

uponprepositionUS /əˈpɑːn/

a formal word for “on”

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

usefuladjectiveUS /ˈjuːsfəl/

being of use or service

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

valuenounUS /ˈvæljuː/

a numerical quantity measured or assigned or computed

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

virtuenounUS /ˈvɝː.tʃuː/

Moral excellence and goodness of character; the highest human attainment in Stoic philosophy.

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

wasauxiliary verbUS /wɑːz/

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

From this reading As the steam engine was improved upon, its value for driving submarines became better thought of by inventors, not because it was at all suitable for the purpose, but in virtue of the fact that it was the first and for a long time the only practical scheme to produce power on a large scale.

well-nighadverb

(of actions or states) slightly short of or not quite accomplished; all but

From this reading THE HEART OF THE SUBMARINE SINCE the time of the first propelled underwater boat great strides have been made in the methods of driving the submarine, until at the present day the _power plant_ seems to be well-nigh perfect.

wereauxiliary verbUS /wɜːr/

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

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

WhatpronounUS /wʌt/

used to ask for information about something

From this reading =What a Good Power Plant Is.=—There are certain things an engine must be and do to make it useful for driving a submarine boat, and among the chief ones are:

withprepositionUS /wɪð/

in the company of; together with

From this reading For this reason, all the early and even some of the later submarines were powered with steam engines.

Chapter 4 of The Boys' Book of Submarines by A. Frederick (Archie Frederick) Collins holds 95 sentences, grouped into 19 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 4 of The Boys' Book of Submarines contain?

Chapter 4 holds 95 sentences of The Boys' Book of Submarines, unabridged, divided into 19 reading sections.

This page carries chapter 4 of The Boys' Book of Submarines by A. Frederick (Archie Frederick) Collins exactly as it stands in the source edition, without abridgement. It runs to 95 sentences, grouped into 19 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 4 of The Boys' Book of Submarines?

Work through the 19 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 19 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 4 be read aloud to me?

Yes — every sentence and every individual word in chapter 4 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 Boys' Book of Submarines

Common questions about reading The Boys' Book of Submarines by A. Frederick (Archie Frederick) Collins on this page, its source edition and its audio.

Is this the complete text of The Boys' Book of Submarines?

Yes. All 1241 sentences of Project Gutenberg eBook #49873 are kept, with a record of which sentences cover which part.

Which edition of The Boys' Book of Submarines is used?

Project Gutenberg eBook #49873, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Boys' Book of Submarines take to read?

About 103 minutes of reading across 249 sections of 5 sentences each, at an unhurried pace.

How to read The Boys' Book of Submarines section by section

How to work through The Boys' Book of Submarines section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 12 chapters of The Boys' Book of Submarines 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 Boys' Book of Submarines

Words and structures a reader meets early in The Boys' Book of Submarines, each tappable for pronunciation and meaning.

Frederick
A word that appears in the opening chapter of The Boys' Book of Submarines; the reader can tap it to hear it and see its dictionary entry.
Collins
A word that appears in the opening chapter of The Boys' Book of Submarines; the reader can tap it to hear it and see its dictionary entry.
Author
A word that appears in the opening chapter of The Boys' Book of Submarines; the reader can tap it to hear it and see its dictionary entry.
Inventing
A word that appears in the opening chapter of The Boys' Book of Submarines; the reader can tap it to hear it and see its dictionary entry.