Fine and industrial arts in elementary schools (1912)
Sargent, Walter, b. 1868 · Boston, New York [etc.] Ginn and company · leaf 115
Fig. 34. The relation of the lines of rectangular objects to three key lines the lines marked 1, 2, and 3 furnish the key to the directionof most of the others. If these are determined in the rightproportion and at the right angles, the general structuremay easily be completed. All slants extending…
Art · Manual training
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