Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 139
ycurved. In order to show these rays on a drawing in water-coloursthe surface must be tinted with pale burnt umber, leavingthe light spaces, and one side of these may be softened offwith the water brush to imitate nature more closely. Thecolour then being mixed a little darker, the rest of… … GOLOUEING DRAWINGS. 137 mixing it still darker and using a fine-pointed brush, theend grain may be put on in thin dark lines, broken fre-quently, and placed rather close together. When this is
Mechanical drawing
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