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The Radio Boys Under the Sea
The Radio Boys Under the Sea

Chapter XXI

Chapter 21 of The Radio Boys Under the Sea is here in full — 71 sentences across 15 reading sections, with audio for every sentence and word.

By J. W. Duffield • Curated US English Learning Edition
Cover illustration for The Radio Boys Under the Sea
Context Illustration Reading 1/14 · 5 lines
English subtitles · tap any word to listen 1 / 5
FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.
The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.
Suppose the mysterious boxes did not contain treasure after all?
They were almost afraid to open them.
Phil it was who began to pry off the lid of the first box.
0:00 / 0:00
Speed 0.75x
AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

The Radio Boys Under the Sea

Chapter XXI

Chapter 21 of The Radio Boys Under the Sea is here in full — 71 sentences across 15 reading sections, with audio for every sentence and word.

Reading 1/14 · 5 reading units · Lines 1–5

Line 1
FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.
/frʌm ðə ˈoʊʃən bed θriː ˈbɑːksəz ðeɪ rɪˈtriːvd frʌm ðə ˈsʌŋkən ˈvesəl ðæt deɪ ənd sɪns ɪt wɑːz ˈɡetɪŋ dɑːrk wen ðə læst ʌv ðiːz wɑːz hɔːld tuː ðə ˈsɜːrfəs ðeɪ ˌdɪˈsaɪdɪd tuː poʊstˈpoʊn ˈeni ˈfɜːrðər ˌɑːpərˈeɪʃənz tɪl ðə nekst deɪ/
Line 2
The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.
/ðə bɔɪz wɜːr ˈkjʊriəsli ˈsaɪlənt æz ðeɪ tʌɡd ənd hɔːld ðə tʃests tuː ðə keɪv wer ðeɪ maɪt ɪɡˈzæmɪn ðer ˈkɑːntents/
Line 3
Suppose the mysterious boxes did not contain treasure after all?
/səˈpoʊz ðə mɪˈstɪriəs ˈbɑːksəz dɪd nɑːt kənˈteɪn ˈtreʒər ˈæftər ɔːl/
Line 4
They were almost afraid to open them.
/ðeɪ wɜːr ˈɔːlmoʊst əˈfreɪd tuː ˈoʊ.pən ðem/
Line 5
Phil it was who began to pry off the lid of the first box.

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.

chests noun US /tʃests/

plural of “chest” — the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates

From this reading “The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1
hauled verb US /hɔːld/

past form of “haul” — draw slowly or heavily

From this reading “FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1
lid noun US /lɪd/

either of two folds of skin that can be moved to cover or open the eye

From this reading “Phil it was who began to pry off the lid of the first box.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1
postpone verb US /poʊstˈpoʊn/

hold back to a later time

From this reading “FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1
pry verb US /praɪ/

to move or force, especially in an effort to get something open

From this reading “Phil it was who began to pry off the lid of the first box.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1
retrieved verb US /rɪˈtriːvd/

Got or brought back something that was lost or hidden.

From this reading “FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.”

Velmora curated lexicon
sunken adjective US /ˈsʌŋkən/

having a sunken area

From this reading “FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1
tugged verb US /tʌɡd/

inflected form of “tug” — pull hard

From this reading “The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.”

CMU Pronouncing Dictionary · Princeton WordNet 3.1

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.

next day adjective + noun

In this reading “FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.”

60,103 times in 426,211 chapters
getting dark noun + noun

In this reading “FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.”

867 times in 426,211 chapters
almost afraid adverb + adjective

In this reading “They were almost afraid to open them.”

1,192 times in 426,211 chapters

All words in this reading · 65

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.

afraidadjectiveUS /əˈfreɪd/

filled with fear or apprehension

From this reading They were almost afraid to open them.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
afterprepositionUS /ˈæftər/

later than; following

From this reading Suppose the mysterious boxes did not contain treasure after all?

Velmora grammar entry · CMU Pronouncing Dictionary
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 Suppose the mysterious boxes did not contain treasure after all?

CMU Pronouncing Dictionary · Princeton WordNet 3.1
almostadverbUS /ˈɔːlmoʊst/

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

From this reading They were almost afraid to open them.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
andconjunctionUS /ənd/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
anyadjectiveUS /ˈeni/

one or some or every or all without specification

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
asconjunctionUS /æz/

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

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

Velmora grammar entry · CMU Pronouncing Dictionary
BEDnounUS /bed/

a piece of furniture that provides a place to sleep

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
beganverbUS /bɪˈɡæn/

inflected form of “begin” — take the first step or steps in carrying out an action

From this reading Phil it was who began to pry off the lid of the first box.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
boxnounUS /bɑːks/

a (usually rectangular) container; may have a lid

From this reading Phil it was who began to pry off the lid of the first box.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
boxesnounUS /ˈbɑːksəz/

plural of “box” — a (usually rectangular) container; may have a lid

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
boysnounUS /bɔɪz/

plural of “boy” — a youthful male person

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
cavenounUS /keɪv/

a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
chestsnounUS /tʃests/

plural of “chest” — the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
containverbUS /kənˈteɪn/

include or contain; have as a component

From this reading Suppose the mysterious boxes did not contain treasure after all?

CMU Pronouncing Dictionary · Princeton WordNet 3.1
contentsnounUS /ˈkɑːntents/

(usually plural) everything that is included in a collection and that is held or included in something

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
curiouslyadverbUS /ˈkjʊriəsli/

in a manner differing from the usual or expected

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
darknounUS /dɑːrk/

absence of light or illumination

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
daynounUS /deɪ/

time for Earth to make a complete rotation on its axis

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
decidedadjectiveUS /ˌdɪˈsaɪdɪd/

recognizable; marked

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
didauxiliary verbUS /dɪd/

the past form of “do”, used in questions and negatives

From this reading Suppose the mysterious boxes did not contain treasure after all?

Velmora grammar entry · CMU Pronouncing Dictionary
examineverbUS /ɪɡˈzæmɪn/

consider in detail and subject to an analysis in order to discover essential features or meaning

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
firstadjectiveUS /fɜːrst/

preceding all others in time or space or degree

From this reading Phil it was who began to pry off the lid of the first box.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
FROMprepositionUS /frʌm/

showing where something starts, or who sent it

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
furtheradverbUS /ˈfɜːrðər/

to or at a greater extent or degree or a more advanced stage (“further” is used more often than “farther” in this abstract sense)

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
gettingnounUS /ˈɡetɪŋ/

the act of acquiring something

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
hauledverbUS /hɔːld/

past form of “haul” — draw slowly or heavily

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
lastadjectiveUS /læst/

immediately past

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
lidnounUS /lɪd/

either of two folds of skin that can be moved to cover or open the eye

From this reading Phil it was who began to pry off the lid of the first box.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
mightmodal verbUS /maɪt/

used to say something is possible but not certain

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

Velmora grammar entry · CMU Pronouncing Dictionary
mysteriousadjectiveUS /mɪˈstɪriəs/

of an obscure nature

From this reading Suppose the mysterious boxes did not contain treasure after all?

CMU Pronouncing Dictionary · Princeton WordNet 3.1
nextadjectiveUS /nekst/

immediately following in time or order

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading Suppose the mysterious boxes did not contain treasure after all?

Velmora grammar entry · CMU Pronouncing Dictionary
OCEANnounUS /ˈoʊʃən/

a large body of water constituting a principal part of the hydrosphere

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
offadverbUS /ɔːf/

from a particular thing or place or position (“forth” is obsolete)

From this reading Phil it was who began to pry off the lid of the first box.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
openverbUS /ˈoʊ.pən/

To move from a closed position.

From this reading They were almost afraid to open them.

Velmora curated lexicon
operationsnounUS /ˌɑːpərˈeɪʃənz/

financial transactions at a brokerage; having to do with the execution of trades and keeping customer records

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
Phil

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

From this reading Phil it was who began to pry off the lid of the first box.

Pending verification
postponeverbUS /poʊstˈpoʊn/

hold back to a later time

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
pryverbUS /praɪ/

to move or force, especially in an effort to get something open

From this reading Phil it was who began to pry off the lid of the first box.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
retrievedverbUS /rɪˈtriːvd/

Got or brought back something that was lost or hidden.

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora curated lexicon
silentadjectiveUS /ˈsaɪlənt/

marked by absence of sound

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
sinceprepositionUS /sɪns/

from a time in the past until now

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
sunkenadjectiveUS /ˈsʌŋkən/

having a sunken area

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
SupposeverbUS /səˈpoʊz/

express a supposition

From this reading Suppose the mysterious boxes did not contain treasure after all?

CMU Pronouncing Dictionary · Princeton WordNet 3.1
surfacenounUS /ˈsɜːrfəs/

the outer boundary of an artifact or a material layer constituting or resembling such a boundary

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
THEdeterminerUS /ðə/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
theirdeterminerUS /ðer/

belonging to the people or things already mentioned

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

Velmora grammar entry · CMU Pronouncing Dictionary
thempronounUS /ðem/

the people or things already mentioned, as the object

From this reading They were almost afraid to open them.

Velmora grammar entry · CMU Pronouncing Dictionary
thesedeterminerUS /ðiːz/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
theypronounUS /ðeɪ/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
ThreenounUS /θriː/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
tillprepositionUS /tɪl/

up to a particular time

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
toparticleUS /tuː/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
treasurenounUS /ˈtreʒər/

accumulated wealth in the form of money or jewels etc.

From this reading Suppose the mysterious boxes did not contain treasure after all?

CMU Pronouncing Dictionary · Princeton WordNet 3.1
tuggedverbUS /tʌɡd/

inflected form of “tug” — pull hard

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
vesselnounUS /ˈvesəl/

a tube in which a body fluid circulates

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

CMU Pronouncing Dictionary · Princeton WordNet 3.1
wasauxiliary verbUS /wɑːz/

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

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
wereauxiliary verbUS /wɜːr/

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

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

Velmora grammar entry · CMU Pronouncing Dictionary
whenconjunctionUS /wen/

at the time that

From this reading FROM THE OCEAN BED Three boxes they retrieved from the sunken vessel that day, and since it was getting dark when the last of these was hauled to the surface, they decided to postpone any further operations till the next day.

Velmora grammar entry · CMU Pronouncing Dictionary
whereconjunctionUS /wer/

in or at the place that

From this reading The boys were curiously silent as they tugged and hauled the chests to the cave where they might examine their contents.

Velmora grammar entry · CMU Pronouncing Dictionary
whopronounUS /huː/

which person or people

From this reading Phil it was who began to pry off the lid of the first box.

Velmora grammar entry · CMU Pronouncing Dictionary

Chapter 21 of The Radio Boys Under the Sea by J. W. Duffield holds 71 sentences, grouped into 15 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 21 of The Radio Boys Under the Sea contain?

Chapter 21 holds 71 sentences of The Radio Boys Under the Sea, unabridged, divided into 15 reading sections.

This page carries chapter 21 of The Radio Boys Under the Sea by J. W. Duffield exactly as it stands in the source edition, without abridgement. It runs to 71 sentences, grouped into 15 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 21 of The Radio Boys Under the Sea?

Work through the 15 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 15 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 21 be read aloud to me?

Yes — every sentence and every individual word in chapter 21 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 Radio Boys Under the Sea

Common questions about reading The Radio Boys Under the Sea by J. W. Duffield on this page, its source edition and its audio.

Is this the complete text of The Radio Boys Under the Sea?

Yes. All 2926 sentences of Project Gutenberg eBook #45146 are kept, with a record of which sentences cover which part.

Which edition of The Radio Boys Under the Sea is used?

Project Gutenberg eBook #45146, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Radio Boys Under the Sea take to read?

About 243 minutes of reading across 586 sections of 5 sentences each, at an unhurried pace.

How to read The Radio Boys Under the Sea section by section

How to work through The Radio Boys Under the Sea section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 30 chapters of The Radio Boys Under the Sea 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 Radio Boys Under the Sea

Words and structures a reader meets early in The Radio Boys Under the Sea, each tappable for pronunciation and meaning.

Plunging
A word that appears in the opening chapter of The Radio Boys Under the Sea; the reader can tap it to hear it and see its dictionary entry.
Runaway
A word that appears in the opening chapter of The Radio Boys Under the Sea; the reader can tap it to hear it and see its dictionary entry.
Horse
A word that appears in the opening chapter of The Radio Boys Under the Sea; the reader can tap it to hear it and see its dictionary entry.
Blazing
A word that appears in the opening chapter of The Radio Boys Under the Sea; the reader can tap it to hear it and see its dictionary entry.