Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 727
Fig. 1791. is its final position. All other points are treated in the same way. The edge e ilying in the perspective plane is the same length in perspective as in projection. The transposition of the profile plane from M IST to Mi Nj is only necessaryto avoid complicating the perspective with the…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
