Teachers' manual for the Prang course in drawing for graded schools, books 1-6 (1897)
Clark, John Spencer, Prang Company, Hicks Mary D, Perry, Walter Scott · Boston. Prang educ. co. · leaf 159
HOOK v.] REPRESEXTA TIOX. —MODEL DRA WING IX LWIIT AXD SHADE. 149 working in all directions, two fundamental movements are suggested for those work-ing in but three planes — the plane of light, the plane of shade, and the cast shadow. 1. The oblique direction, left to right, for planes of shade on…
Drawing -- Study and teaching
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