Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 78
ut h ,ve not yet ascertainedwhether the earth moves faster at one time than at an-other. This point, however, is readily ascertained by the CMP. Taking the figure as drawn, we have first, the latitudes of the twostations which gives us the angle PCP1, consequently in the isosceles tri-angle PaCP we… … tney are the angles ZPL and ZTL1; therefore we know their supplementsto wit, LPC and LPC. Taking away from these respectively, the anglesCPP1 and CPT, we have remaining the angles LPP1 and LTT. Con-sequently in the triangle MPT we have the side PP1, and all the angles tofind the other two sides MP…
Astronomy
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