m of a mine, or of a moun- tain. At the bottom of a mine a pendulum will be attracted Now in order to determine the dimexsions of the earth so only by the particles of matter below it, the stratum above accurately, numerous arcs of meridians had to be measured. it exerting no influence upon it… … measured with a theodolite. Then, having one side and the vibrate as though it were on the surface of a sphera having angles, the other sides can be easily calculated. In the same a radius 500 feet shorter than that of the earth. Since the way we compute the distance of the stations, f and g, and…
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