Elements of plane and solid free-hand geometrical drawing, with lettering; and some elements of geometrical ornamental design, including the principals of harmonic angular ratios, etc. In three parts ... for draughtsmen and artisans; and teachers and students of industrial and mechanical drawing (1878)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 58
Let these ovals be drawn in a great variety of proportions andpositions, both in rhombus-like figures and trapezoids, and withan frequent reference as possible to leaves^ which exhibit a greatvariety of graceful ovals. CURVES AND CURVED OBJECTS IN GENERAL, 41 Ex. 109. The material of vases, etc.,…
Geometrical drawing · Mechanical drawing
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