Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 135
tages, 114, 112, and 110 volts, butdata referring to the highest voltage only are given. t By spherical reduction factor is meant the factor by ■which the horizontal candle-power must be multiplied to obtain the mean spherical candle-power. t The larger units are almost invariably used with… … ^^ fe ^ <
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
