Lange, David C. (David Christoph) · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 63
Fig. 1.—An End PavilionStudent Work—Wm. Hough. University of Penna. 50 PRINCIPLES OP SHADES AND SHADOWS IMHH HHUBv AktsMSss^r-:, m Jl||(^=^ >-. ^^^^^^^K ,. m i 4 … Fig .2. GENERAL PHLNCIPLES 51 the students mind, for when these are once mastered therest of the work is relatively easy. The theory may betaught in a very short time, and when understood, enablesone to solve easily any problem in the subject. It is, how-ever, necessary, in order to become…
Shades and shadows · Geometry, Descriptive
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