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The Mystery of the Fifteen Sounds
The Mystery of the Fifteen Sounds

Chapter XII · Scientist Roger

Chapter XII of The Mystery of the Fifteen Sounds, “Scientist Roger,” is here in full — 65 sentences across 13 reading sections, with audio for every sentence and word.

Cover illustration for The Mystery of the Fifteen Sounds
Context Illustration Reading 1/13 · 5 lines
English subtitles · tap any word to listen 1 / 5
Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.
Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.
"We attended the same technical college," he told Grover.
"And did we have experiences in India?" chuckled Ellison.
To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.
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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 Mystery of the Fifteen Sounds

Chapter XII · Scientist Roger

Chapter XII of The Mystery of the Fifteen Sounds, “Scientist Roger,” is here in full — 65 sentences across 13 reading sections, with audio for every sentence and word.

Reading 1/13 · 5 reading units · Lines 1–5

Line 1
Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.
Line 2
Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.
Line 3
"We attended the same technical college," he told Grover.
Line 4
"And did we have experiences in India?" chuckled Ellison.
/ənd dɪd wiː hæv ɪkˈspɪriənsɪz ɪn ˈɪndiə ˈtʃʌkəld ˈelɪsən/
Line 5
To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

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.

ape noun US /eɪp/

any of various primates with short tails or no tail at all

From this reading “To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.”

Clark's noun US /klɑːrks/

possessive form of “clark” — United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838)

From this reading “Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.”

delegated verb US /ˈdeləɡeɪtəd/

past form of “delegate” — transfer power to someone

From this reading “Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.”

electrical adjective US /ɪˈlektrɪkəl/

relating to or concerned with electricity

From this reading “Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.”

Ellison noun US /ˈelɪsən/

United States novelist who wrote about a young Black man and his struggles in American society (1914-1994)

From this reading “Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.”

kangaroo noun US /ˌkæŋɡərˈuː/

any of several herbivorous leaping marsupials of Australia and New Guinea having large powerful hind legs and a long thick tail

From this reading “To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.”

respectively adverb US /rɪˈspektɪvli/

in the order given

From this reading “Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.”

specialist noun US /ˈspeʃələst/

an expert who is devoted to one occupation or branch of learning

From this reading “Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.”

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.

Brought back verb + particle counted as “bring back”

bring back to the point of departure

In this reading “Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.”

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.

adeterminerUS /ə/

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

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

alarmnounUS /əˈlɑːrm/

fear resulting from the awareness of danger

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

andconjunctionUS /ənd/

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

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

apenounUS /eɪp/

any of various primates with short tails or no tail at all

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

asconjunctionUS /æz/

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

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

attendedadjectiveUS /əˈtendɪd/

playing or singing with instrumental or vocal accompaniment

From this reading "We attended the same technical college," he told Grover.

backadverbUS /bæk/

in or to or toward a former location

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

bicyclenounUS /ˈbaɪsɪkəl/

a wheeled vehicle that has two wheels and is moved by foot pedals

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

bio-chemist

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

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

brothersnounUS /ˈbrʌðərz/

plural of “brother” — a male with the same parents as someone else

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

BroughtverbUS /brɔːt/

inflected form of “bring” — take something or somebody with oneself somewhere

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

carnounUS /kɑːr/

a motor vehicle with four wheels; usually propelled by an internal combustion engine

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

carry-all

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

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

chuckledverbUS /ˈtʃʌkəld/

past form of “chuckle” — laugh quietly or with restraint

From this reading "And did we have experiences in India?" chuckled Ellison.

ClarknounUS /klɑːrk/

United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838)

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

Clark'snounUS /klɑːrks/

possessive form of “clark” — United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838)

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

collegenounUS /ˈkɑːlɪdʒ/

the body of faculty and students of a college

From this reading "We attended the same technical college," he told Grover.

delegatedverbUS /ˈdeləɡeɪtəd/

past form of “delegate” — transfer power to someone

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

didauxiliary verbUS /dɪd/

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

From this reading "And did we have experiences in India?" chuckled Ellison.

driveverbUS /draɪv/

operate or control a vehicle

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

electricaladjectiveUS /ɪˈlektrɪkəl/

relating to or concerned with electricity

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

EllisonnounUS /ˈelɪsən/

United States novelist who wrote about a young Black man and his struggles in American society (1914-1994)

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

estatenounUS /ɪˈsteɪt/

everything you own; all of your assets (whether real property or personal property) and liabilities

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

experiencesnounUS /ɪkˈspɪriənsɪz/

plural of “experience” — the accumulation of knowledge or skill that results from direct participation in events or activities

From this reading "And did we have experiences in India?" chuckled Ellison.

firstadjectiveUS /fɜːrst/

preceding all others in time or space or degree

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

gotverbUS /ɡɑːt/

inflected form of “get” — come into the possession of something concrete or abstract

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

greetedverbUS /ˈɡriːtəd/

past form of “greet” — express greetings upon meeting someone

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

Grover

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

From this reading "We attended the same technical college," he told Grover.

haveauxiliary verbUS /hæv/

used with a past participle to form the perfect tenses

From this reading "And did we have experiences in India?" chuckled Ellison.

hepronounUS /hiː/

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

From this reading "We attended the same technical college," he told Grover.

hereadverbUS /hiːr/

in or at this place; where the speaker or writer is

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

himselfpronounUS /hɪmˈself/

used when the man or boy doing the action is also its object

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

hisdeterminerUS /hɪz/

belonging to a man, boy, or male animal already mentioned

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

inprepositionUS /ɪn/

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

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

IndianounUS /ˈɪndiə/

a republic in the Asian subcontinent in southern Asia; second most populous country in the world; achieved independence from the United Kingdom in 1947

From this reading "And did we have experiences in India?" chuckled Ellison.

kangaroonounUS /ˌkæŋɡərˈuː/

any of several herbivorous leaping marsupials of Australia and New Guinea having large powerful hind legs and a long thick tail

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

laboratorynounUS /ˈlæbrətɔːri/

a workplace for the conduct of scientific research

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

likelyadjectiveUS /ˈlaɪkli/

has a good chance of being the case or of coming about

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

linkverbUS /lɪŋk/

make a logical or causal connection

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

long-missed

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

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

MrnounUS /ˈmɪstər/

a form of address for a man

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

newadjectiveUS /nuː/

not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

night'snounUS /naɪts/

possessive form of “night” — the time after sunset and before sunrise while it is dark outside

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

perhapsadverbUS /pərˈhæps/

by chance

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

respectivelyadverbUS /rɪˈspektɪvli/

in the order given

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

Roger

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

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

sameadjectiveUS /seɪm/

Identical; not different.

From this reading "We attended the same technical college," he told Grover.

servantsnounUS /ˈsɜːrvənts/

plural of “servant” — a person working in the service of another (especially in the household)

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

someadjectiveUS /sʌm/

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

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

specialistnounUS /ˈspeʃələst/

an expert who is devoted to one occupation or branch of learning

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

startlingadjectiveUS /ˈstɑːrtlɪŋ/

so remarkably different or sudden as to cause momentary shock or alarm

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

surprisenounUS /sərˈpraɪz/

the astonishment you feel when something totally unexpected happens to you

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

technicaladjectiveUS /ˈteknɪkəl/

of or relating to technique or proficiency in a practical skill

From this reading "We attended the same technical college," he told Grover.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

thedeterminerUS /ðə/

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

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

theirdeterminerUS /ðer/

belonging to the people or things already mentioned

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

thoughtnounUS /θɔːt/

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

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

toparticleUS /tuː/

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

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

toldverbUS /toʊld/

inflected form of “tell” — express in words

From this reading "We attended the same technical college," he told Grover.

wasauxiliary verbUS /wɑːz/

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

From this reading To himself Roger thought that here was some likely link with the kangaroo and, perhaps, with the ape of the first startling night's alarm.

WepronounUS /wiː/

the speaker together with one or more other people

From this reading "We attended the same technical college," he told Grover.

withprepositionUS /wɪð/

in the company of; together with

From this reading Brought back to the laboratory in Mr. Clark's car, with one of the servants delegated to drive the estate carry-all in with his bicycle, Roger got a new surprise.

Zendt

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

From this reading Mr. Clark greeted their bio-chemist and their electrical specialist, respectively Mr. Zendt and Mr. Ellison, as long-missed brothers.

Chapter 12 of The Mystery of the Fifteen Sounds by Van Powell holds 65 sentences, grouped into 13 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 Mystery of the Fifteen Sounds contain?

Chapter 12 holds 65 sentences of The Mystery of the Fifteen Sounds, unabridged, divided into 13 reading sections.

This page carries chapter 12 of The Mystery of the Fifteen Sounds by Van Powell exactly as it stands in the source edition, without abridgement. It runs to 65 sentences, grouped into 13 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 Mystery of the Fifteen Sounds?

Work through the 13 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 13 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 Mystery of the Fifteen Sounds

Common questions about reading The Mystery of the Fifteen Sounds by Van Powell on this page, its source edition and its audio.

Is this the complete text of The Mystery of the Fifteen Sounds?

Yes. All 3942 sentences of Project Gutenberg eBook #53214 are kept, with a record of which sentences cover which part.

Which edition of The Mystery of the Fifteen Sounds is used?

Project Gutenberg eBook #53214, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Mystery of the Fifteen Sounds take to read?

About 328 minutes of reading across 789 sections of 5 sentences each, at an unhurried pace.

How to read The Mystery of the Fifteen Sounds section by section

How to work through The Mystery of the Fifteen Sounds section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 40 chapters of The Mystery of the Fifteen Sounds 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 Mystery of the Fifteen Sounds

Words and structures a reader meets early in The Mystery of the Fifteen Sounds, each tappable for pronunciation and meaning.

Wonder
A word that appears in the opening chapter of The Mystery of the Fifteen Sounds; the reader can tap it to hear it and see its dictionary entry.
Roger
A word that appears in the opening chapter of The Mystery of the Fifteen Sounds; the reader can tap it to hear it and see its dictionary entry.
Father
A word that appears in the opening chapter of The Mystery of the Fifteen Sounds; the reader can tap it to hear it and see its dictionary entry.
You're
A word that appears in the opening chapter of The Mystery of the Fifteen Sounds; the reader can tap it to hear it and see its dictionary entry.