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The Scientific American Boy
The Scientific American Boy

Chapter XII · Chapter 12

Chapter 12 of The Scientific American Boy is here in full — 123 sentences across 25 reading sections, with audio for every sentence and word.

Cover illustration for The Scientific American Boy
Context Illustration Reading 1/24 · 5 lines
English subtitles · tap any word to listen 1 / 5
WIGWAGGING AND HELIOGRAPHING.
Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.
Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."
Fred, the tailor of our camp, made us two white flags with red centers.
Each flag was two feet square and was fastened to a light staff about five feet long.
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LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
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A keeper or guardian of historical records and memories.

The Scientific American Boy

Chapter XII · Chapter 12

Chapter 12 of The Scientific American Boy is here in full — 123 sentences across 25 reading sections, with audio for every sentence and word.

Reading 1/24 · 5 reading units · Lines 1–5

Line 1
WIGWAGGING AND HELIOGRAPHING.
Line 2
Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.
Line 3
Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."
/ˈʌŋkəl ed wen hiː red ʌv ˈaʊər ɪkˈspɪriəns sent ʌs ðə juː es ˈɑːrmi ˈmænjuːəl ʌv ˈsɪɡnəlɪŋ/
Line 4
Fred, the tailor of our camp, made us two white flags with red centers.
Line 5
Each flag was two feet square and was fastened to a light staff about five feet long.
/iːtʃ flæɡ wɑːz tuː fiːt skwer ənd wɑːz ˈfæsənd tuː ə laɪt stæf əˈbaʊt faɪv fiːt lɔːŋ/

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.

centers noun US /ˈsentərz/

plural of “center” — an area that is approximately central within some larger region

From this reading “Fred, the tailor of our camp, made us two white flags with red centers.”

construction noun US /kənˈstrʌkʃən/

the act of constructing something

From this reading “Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.”

flags noun US /flæɡz/

plural of “flag” — emblem usually consisting of a rectangular piece of cloth of distinctive design

From this reading “Fred, the tailor of our camp, made us two white flags with red centers.”

Goblins noun US /ˈɡɑːblɪnz/

plural of “goblin” — (folklore) a small grotesque supernatural creature that makes trouble for human beings

From this reading “Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.”

Manual noun US /ˈmænjuːəl/

a small handbook

From this reading “Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."”

signaling noun US /ˈsɪɡnəlɪŋ/

any nonverbal action or gesture that encodes a message

From this reading “Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.”

tailor verb US /ˈteɪlər/

adjust to a specific need or market

From this reading “Fred, the tailor of our camp, made us two white flags with red centers.”

tramp noun US /træmp/

a vagrant

From this reading “Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.”

All words in this reading · 64

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.

adeterminerUS /ə/

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

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

aboutprepositionUS /əˈbaʊt/

on the subject of; concerning

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

adventureverbUS /ædˈventʃər/

take a risk in the hope of a favorable outcome

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

ANDconjunctionUS /ənd/

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

From this reading WIGWAGGING AND HELIOGRAPHING.

ArmynounUS /ˈɑːrmi/

a permanent organization of the military land forces of a nation or state

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

betweenprepositionUS /bɪˈtwiːn/

in the space, time, or range separating two things

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

blessingnounUS /ˈblesɪŋ/

the formal act of approving

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

campnounUS /kæmp/

temporary living quarters specially built by the army for soldiers

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

centersnounUS /ˈsentərz/

plural of “center” — an area that is approximately central within some larger region

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

constructionnounUS /kənˈstrʌkʃən/

the act of constructing something

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

EachdeterminerUS /iːtʃ/

every one of two or more people or things, taken separately

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

EdnounUS /ed/

impotence resulting from a man's inability to have or maintain an erection of his penis

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

experienceverbUS /ɪkˈspɪriəns/

undergo or live through a difficult experience

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

fastenedadjectiveUS /ˈfæsənd/

firmly closed or secured

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

feetnounUS /fiːt/

plural of “foot” — the part of the leg of a human being below the ankle joint

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

fivenounUS /faɪv/

the cardinal number that is the sum of four and one

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

flagnounUS /flæɡ/

emblem usually consisting of a rectangular piece of cloth of distinctive design

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

flagsnounUS /flæɡz/

plural of “flag” — emblem usually consisting of a rectangular piece of cloth of distinctive design

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

Fred

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

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

GoblinsnounUS /ˈɡɑːblɪnz/

plural of “goblin” — (folklore) a small grotesque supernatural creature that makes trouble for human beings

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

goodadjectiveUS /ɡʊd/

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

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

hepronounUS /hiː/

a man, boy, or male animal already mentioned, as the subject

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

heliographnoun

an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

HELIOGRAPHING

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

From this reading WIGWAGGING AND HELIOGRAPHING.

how

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

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

islandnounUS /ˈaɪlənd/

a land mass (smaller than a continent) that is surrounded by water

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

lateradverbUS /ˈleɪtər/

happening at a time subsequent to a reference time

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

learningnounUS /ˈlɜːrnɪŋ/

the cognitive process of acquiring skill or knowledge

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

lednounUS /led/

diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

lightadjectiveUS /laɪt/

of comparatively little physical weight or density

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

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 Each flag was two feet square and was fastened to a light staff about five feet long.

madeadjectiveUS /meɪd/

produced by a manufacturing process

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

ManualnounUS /ˈmænjuːəl/

a small handbook

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

necessitynounUS /nəˈsesəti/

the condition of being essential or indispensable

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

OurdeterminerUS /ˈaʊər/

belonging to the speaker and others

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

PlatformnounUS /ˈplætfɔːrm/

a raised horizontal surface

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

quiteadverbUS /kwaɪt/

to a degree (not used with a negative)

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

readverbUS /red/

interpret something that is written or printed

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

reallyadverbUS /ˈrɪli/

in accordance with truth or fact or reality

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

rednounUS /red/

red color or pigment; the chromatic color resembling the hue of blood

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

SnounUS /es/

1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

sentnounUS /sent/

100 senti equal 1 kroon in Estonia

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

signalingnounUS /ˈsɪɡnəlɪŋ/

any nonverbal action or gesture that encodes a message

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

squareverbUS /skwer/

make square

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

staffnounUS /stæf/

personnel who assist their superior in carrying out an assigned task

From this reading Each flag was two feet square and was fastened to a light staff about five feet long.

systemnounUS /ˈsɪstəm/

instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

tailorverbUS /ˈteɪlər/

adjust to a specific need or market

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

taughtverbUS /tɔːt/

inflected form of “teach” — impart skills or knowledge to

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

thedeterminerUS /ðə/

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

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

toparticleUS /tuː/

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

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

trampnounUS /træmp/

a vagrant

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

twonounUS /tuː/

the cardinal number that is the sum of one and one or a numeral representing this number

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

UnounUS /juː/

a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

UnclenounUS /ˈʌŋkəl/

the brother of your father or mother; the husband of your aunt

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

uspronounUS /ʌs/

the speaker and others, as the object of a verb or preposition

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

wasauxiliary verbUS /wɑːz/

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

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

whenconjunctionUS /wen/

at the time that

From this reading Uncle Ed, when he read of our experience, sent us the U. S. Army "Manual of Signaling."

whitenounUS /waɪt/

a Caucasian

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

wigwagverb

send a signal by waving a flag or a light according to a certain code

From this reading Our tramp adventure was really quite a blessing to us, for it taught us the necessity of a good signaling system between the Goblins' Platform and the island and led to our learning how to wigwag, and later to the construction of a heliograph.

WIGWAGGING

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

From this reading WIGWAGGING AND HELIOGRAPHING.

withprepositionUS /wɪð/

in the company of; together with

From this reading Fred, the tailor of our camp, made us two white flags with red centers.

Chapter 12 of The Scientific American Boy by A. Russell (Alexander Russell) Bond holds 123 sentences, grouped into 25 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 12 of The Scientific American Boy contain?

Chapter 12 holds 123 sentences of The Scientific American Boy, unabridged, divided into 25 reading sections.

This page carries chapter 12 of The Scientific American Boy by A. Russell (Alexander Russell) Bond exactly as it stands in the source edition, without abridgement. It runs to 123 sentences, grouped into 25 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 12 of The Scientific American Boy?

Work through the 25 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 25 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 12 be read aloud to me?

Yes — every sentence and every individual word in chapter 12 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 Scientific American Boy

Common questions about reading The Scientific American Boy by A. Russell (Alexander Russell) Bond on this page, its source edition and its audio.

Is this the complete text of The Scientific American Boy?

Yes. All 2637 sentences of Project Gutenberg eBook #15831 are kept, with a record of which sentences cover which part.

Which edition of The Scientific American Boy is used?

Project Gutenberg eBook #15831, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Scientific American Boy take to read?

About 219 minutes of reading across 528 sections of 5 sentences each, at an unhurried pace.

How to read The Scientific American Boy section by section

How to work through The Scientific American Boy section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 24 chapters of The Scientific American Boy 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 Scientific American Boy

Words and structures a reader meets early in The Scientific American Boy, each tappable for pronunciation and meaning.

Skate
A word that appears in the opening chapter of The Scientific American Boy; the reader can tap it to hear it and see its dictionary entry.
Sails
A word that appears in the opening chapter of The Scientific American Boy; the reader can tap it to hear it and see its dictionary entry.
Duties
A word that appears in the opening chapter of The Scientific American Boy; the reader can tap it to hear it and see its dictionary entry.
Secretary
A word that appears in the opening chapter of The Scientific American Boy; the reader can tap it to hear it and see its dictionary entry.