Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 173
be a right angle. These lines showby the angles they make with HPP, the angles that the verticalwalls of the object in perspective projection will make with thepicture plane (§102). 109. m^^ and m^^ have been found, as explained in §97, inaccordance with the rule given in § 98. VHg should next be…
Architecture · Building · Carpentry
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