American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 7
eacher of the most difficult or improvingProblems in the thirty-six, for repetition as memory lessons. The Problems may be worked by pupils either the same sizeas the copy or larger or smaller than it, according to the direc-tions of the teacher, which should be stated at first. But thepupils must… … Scale of £, i, i, of an Inch. FOB THE PUPILS. A worked Problem in Geometrical Drawing may be divided, for conven-ience, into three parts: 1st. The conditions; 2d. The working; 3d. The result.Thus, in Problem b, which is To erect a perpendicular to a given line A B, atits extremity, the given line A…
Geometrical drawing
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