The technic of mechanical drafting a practical guide to neat, correct, and legible drawing (1904)
Reinhardt, Chas. William (Charles William), b. 1858 · New York, The Engineering News Pub. Co. · leaf 29
shaded, so as to avoid any of its compounds, such as sand andgravel, being mistaken for concrete. The symbol for sand can … A- b. Fig. 48. with a little practice be evenly placed by connecting groups ofdotted circular arcs, as shown in Fig. 49. Water in repose (Plate III.) may be represented in two ways, as the exigencies of the case may demand : by graded .._ solid lines, decreasing in strength as their…
Mechanical drawing
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