Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 195
meridian jk on plan till it meets the H.T. in ?t.Draw the projector im, and draw a line from 7t\ through o\till it meets the meridian jk. These are two more points inthe section. SECTIONS OF SOLIDS. iSi Produce the meridian ef till it meets XY in /. Draw aperpendicular at / till it meets the V.T.… … Fig. 3. Drop projectors from each of these points till they meet thecorresponding meridians on plan, and draw a fair curve throughthem. These projections are ellipses. They could also be found byfirst projecting their conjugate diameters, and then completingthem as in Problem 157. The true shape of…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
