Harrison, Elizabeth, 1849-1927 · St. Louis, Mo., Chicago, Ill., Sigma publishing company · leaf 215
199 m VIDEO CYLINDER. which may be made by the addition of these eight partly curved blocks. Of course, in forms of knowledge it is limited to the form of the cylinder … No. 54. Showing divided cylinder and tlie same figure turned inside out, witli its inside center diametrical lines and axial planes changed into the corner edges and faces of the cube. and to the form of the cube, which is made by turn- ing the cylinder inside out.'^ (See Fig. 54.) *These parts of…
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