Osgood, William F. (William Fogg), 1864-1943, Graustein, William C. (William Caspar), 1888-1941, joint author · New York : The Macmillan Company · leaf 561
Fig. 6 Fig. 7 The two hyperboloids of revolution are shown in Figs. 8 and9. The first is known as a hyperholoid of one sheet or animparted hyperholoid ; the second, as a hyperholoid of two sheets,or a hipaHed hyperholoid. Taken together, the hyperboloids (4) and (5) are known asconjugate…
