A manual of elementary geometrical drawing, involving three dimensions. Designed for use in high schools, academies, engineering schools, etc.: and for the self-instruction of inventors, artisans, etc. ... In five divisions .. (1868)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York : J. Wiley & son · leaf 121
PROBLEMS INTOLVIXG THE ISOMETRICAL DEAWIXG OF CIRCLES, 89 sides of the circumscriLing square at tlieir middle points, as theyshould be, since C/and Be are perpendicular to these sides at theirmiddle points. Now in order that the small nrcs,fbh and goe, shouldbe both tangent to the former arcs and…
Geometrical drawing · Mechanical drawing
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
