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13th
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From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
14th
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From this reading On the 14th they began to find their latitude.
2
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From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
6th
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From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
accurate
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From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
alreadynounUS /already/
an important story-specific word used in this passage
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
altitude
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
andconjunctionUS /ənd/
used to join words or parts of a sentence that go together
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
April
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From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
arc
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From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
atprepositionUS /æt/
in or near a particular place or position
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
atmospheric
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
base
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
begannounUS /began/
an important story-specific word used in this passage
From this reading On the 14th they began to find their latitude.
begin
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
beingauxiliary verbUS /ˈbiːɪŋ/
the -ing form of “be”
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
byprepositionUS /baɪ/
showing who or what does the action
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
caused
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
changes
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
chiefs
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
days
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
decided
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
degrees
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
difference
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
donenounUS /done/
an important story-specific word used in this passage
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
Emery
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From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
error
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
evennounUS /even/
an important story-specific word used in this passage
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
extremity
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
find
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
firstnounUS /first/
an important story-specific word used in this passage
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
fromprepositionUS /frʌm/
showing where something starts, or who sent it
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
give
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
greatest
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
hadauxiliary verbUS /hæd/
the past form of “have”, used to form the past perfect
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
inprepositionUS /ɪn/
inside something, or within a place, period, or state
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
latitudenounUS /ˈlætəˌtuːd/
distance north or south of the equator
From this reading On the 14th they began to find their latitude.
loss
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
March
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
measured
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
measurement
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
MERIDIAN
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From this reading THE TWENTY-FOURTH MERIDIAN.
more
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From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
nightsnounUS /naɪts/
Periods of darkness between sunset and sunrise.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
northern
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
notadverbUS /nɑːt/
used to make a word, phrase, or sentence negative
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
number
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
numerous
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
occupied
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
ofprepositionUS /ʌv/
belonging to, or connected with, somebody or something
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
OnprepositionUS /ɑːn/
touching and supported by a surface
From this reading On the 14th they began to find their latitude.
operation
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
owing
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
preceding
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
probably
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
refraction
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
samenounUS /same/
an important story-specific word used in this passage
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
soconjunctionUS /soʊ/
for that reason; with the result that
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
southern
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
stars
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
strata
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
taken
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
thanconjunctionUS /ðæn/
used to introduce the second part of a comparison
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
thatconjunctionUS /ðæt/
used to introduce what somebody said, thought, or felt
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
THEdeterminerUS /ðə/
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading THE TWENTY-FOURTH MERIDIAN.
theirdeterminerUS /ðer/
belonging to the people or things already mentioned
From this reading On the 14th they began to find their latitude.
theypronounUS /ðeɪ/
the people, animals, or things already mentioned, as the subject
From this reading On the 14th they began to find their latitude.
thirty-eight
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
thisdeterminerUS /ðɪs/
used for a person or thing that is near, or that has just been mentioned
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
timenounUS /time/
an important story-specific word used in this passage
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
toparticleUS /tuː/
used before the base form of a verb to make the infinitive
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
triangles
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
TWENTY-FOURTH
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading THE TWENTY-FOURTH MERIDIAN.
wasauxiliary verbUS /wɑːz/
the past form of “be” used with I, he, she, it, or a singular noun
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
withoutprepositionUS /wɪˈθaʊt/
not having, not using, or not accompanied by
From this reading The measurement of the base occupied thirty-eight days, from the 6th of March to the 13th of April, and without loss of time the chiefs decided to begin the triangles.
work
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
wouldmodal verbUS /wʊd/
used for something imagined, polite, or habitual in the past
From this reading The first operation was to find the southern extremity of the arc, and the same being done at the northern extremity, the difference would give the number of degrees measured.
Zorn
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Emery and Zorn had already on the preceding nights taken the altitude of numerous stars, and their work was so accurate that the greatest error was not more than 2", and even this was probably owing to the refraction caused by the changes in the atmospheric strata.
