Warren, Samuel Edward, 1831-1909. [from old catalog] · New York, J. Wiley & sons · leaf 124
\ … SHADES AND SHADOWS. 73 ellipsoid; then the cylinder will be tangent to this sphere in acircle, which may be considered as a circular projection of theelliptical base of the cylinder. Any plane, parallel to the circle just described, may be takenas a new horizontal plane of projection, on which a…
Shades and shadows
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