Detroit. Public schools. Dept. of instruction, teacher training and research. [from old catalog], Kepler, Frank Roy. [from old catalog] · Detroit · leaf 20
on any one of thedifferent projections, it is easy to locate this point on thegiven element in any one or all of the views. If any point as A, Fig. 22, be located on the surface of acylinder the vertical projection of which is a a straight linedrawn through a parallel to the axis, will represent… … \a1
Projection
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
