Ames, William L. (William Lewis), 1855-, Wischmeyer, Carl · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 29
Fig. 19. Fig. 20. above as to the positions of the axes are not necessary,(a) The re\rolution of a point into either plane of projec-tion about any line in that plane as axis, (b) The revolu-tion of a line into either plane of projection about an axislying in that plane and passing through the…
Geometry, Descriptive
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![An illustration from Henry Cornelius Agrippa's Fourth book of occult philosophy, and geomancy. Magical elements of Peter de Abano. Astronomical geomancy [by Gerardus Cremonensis]. The nature of spirits [by Gorg Pictorius]. And arbatel of magic (1655)](https://img.insideoutlibrary.com/img/200/ia-cu31924006718757-218-30.webp)
