Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 129
Fig. 127. Ellipse—Sectionfrom a Coue Fis 128. Ellipse—Sectionfrom a Cylinder in a horizontal line passing through the center of the base; hence thehorizontal projection of c and d will be found on this center line,and will be the extreme ends of the curve. The plane x cuts the surface of the cone…
Architecture · Building
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