Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 16
In addition to a rock section Fig. 11 (a) shows the method of indicating a mud or sand bedwitli small random lioulders. Water either in section or as a receding surface may be shcjwn l\v parallel lines, the spacesbetween them increasing gradually. Conventional representations of wood, masonry and…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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