Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 106
Tonic Cap. PRINCIPLES OF SHADES AND SHADOWS 95 … Corinthian Cap and Base. / 96 GENERAL METHODS Then at a point of tangency of the two surfaces, whateveris true of one surface is also true of the other surface, forsuch a point is in common. This method is only used in determining the shade-lineon double-curved surfaces of revolution. Let it be…
Shades and shadows · Geometry, Descriptive
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