Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 405
reated here.In some cases the lower ball C is a half-spun ball. A^ B^ F^ is a truesection through A B. It will be noticed that the lines Ca, Cc, and Cd,drawn respectively at right angles to ah, he, and cd, are each of differentlengths, thereby making it necessary to obtain a true profile on eachof…
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
