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" Paris, and extended northward ; the result of the measurement gave, as the length of a degree in latitude 49J°, 121,627 yards, which differs only 35 yards from what is now considered as the most exact length ; an accuracy which is justly supposed to... "
Plane and Spherical Trigonometry ... - Page 114
by Henry W. Jeans - 1842
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Library of Useful Knowledge: Natural philosophy, Volume 3

1834 - 578 pages
...northward ; the result of the measurement gave, as the length of a degree in latitude 49^°, 121,627 yards, which differs only 35 yards from what is now considered as the most exact length; an accuracy which is justly supposed to _be quite accidental. Since this period arcs of meridian lines have been...
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Family Magazine: Or Monthly Abstract of General Knowledge, Volume 2

1835 - 430 pages
...northward ; the result of the measurement gave, as the length of a degree in latitude 49f°, 121,627 yards, which differs only 35 yards from what is now considered as the most exact length ; an aceuracy which is justly supposed to be quite accidental. Since this period arcs of meridian lines...
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Elements of Plane Astronomy

John BRINKLEY (Bishop of Cloyne.) - Astronomy - 1836 - 334 pages
...extending northward, and found, in latitude 49|°, a degree = 121,627 yards, differing only by about 35 yards, from what is now considered as the most exact length. This accuracy seems to have been accidental, and obtained by a compensation of errors. A few years...
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Brinkley's Astronomy

John Brinkley - Astronomy - 1871 - 344 pages
...extending northward, and found, in latitude 49^°, a degree = 121,627 yards, differing only by about 35 yards from what is now considered as the most exact length. This accuracy seems to have been accidental, and obtained by a compensation of errors. A few years...
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Plane and spherical trigonometry. [With] Solutions of problems. [Followed by ...

Henry William Jeans - 1873 - 288 pages
...4-86" N., and the length of the line AS to be 12346-4 yards; then by a common proportion we easily find that the length of a degree is about 69 miles....differs only 35 yards from what is now considered as the more exact length ; an accuracy, however, which must be supposed to be quite accidental. If we assume...
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