Elementary projection drawing. Theory and practice. For preparatory and higher scientific schools, industrial and normal classes; and the self-instruction of teachers, inventors, draftsmen, and artisans. In six divisions .. (1880)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 34
trictly represents its front face. In this, and in all similar problems, it is useful to distinguish thepositions of the points, lines, and faces, in words; as upper andlower ; front and back ; right and left; just as is done in speakingof the bodies which (23) the projections represent. Thus, 1st.…
Geometrical drawing · Mechanical drawing
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