Elementary linear perspective of form and shadow ... Complete in itself ... For draftsmen, artists, and industrial drawing courses in preparatory and high schools, etc. In two parts.. (1891)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 121
te high. 136. Yalleys^ below the ob-servers level, will be known byanimals, shrubs, &c., in them appearing below the horizon.Fig. 60. Also if the descent into them is sudden, they may be plainly indi-cated by the crest of the high ground before them, together withthe greater distinctness of the… … 112 LINEAR PERSPECTIVE.
Perspective · Mechanical drawing
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