The difference
between this and the pendulum for 45 degrees is .0113 of an inch; so
that the pendulum for 45 degrees would be estimated, according to
Mairan, at 39.1619 - .0113 = 39.1506 inches, almost precisely the
same with Newton's computation herein adopted.
(3.) Sir Isaac Newton's computations for the different degrees
of latitude, from 30 degrees to 45 degrees, are as follows:
degrees Pieds. Lignes. degrees Pieds. Lignes.
30 3 7.948 42 3 8.327
35 3 8.099 43 3 8.361
40 3 8.261 44 3 8.394
41 3 8.294 45 3 8.428
(4.) Or, more exactly, 144:175::224:272.2.
(5.) Or, more exactly, 62.5:1728::77.7:2150.39.
(6.) The merchant's weight.
(7.) The Eng. rood contains 10,890 sq. feet = 104.355 feet sq.
(8.) _The Measures, Weights, and Coins of the Decimal System,
estimated in those of England, now used in the United States._
1. MEASURES OF LENGTH.
Feet. Equivalent in English measure.
The point, . .001 . .011 inch.
The line, . .01 . .
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