Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 162
convex surface of thecircumscribing cylinder ; and the solidity of the sphere is twothirds the solidity of the circumscribing cylinder. Let MPNQ be a great circle ofthe sphere; ABCD the circum-scribing square : if the semicirclePMQ, and the half square PADQ,are at the same time made to re-volve… … 162 GEOMETRY Of the Sphere.
Geometry · Plane trigonometry
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