co-latitude

Updated: May 11, 2025

A is the baseboard, 9 in. by 5 in., near each corner of which is inserted an ordinary wood screw, S S, for the purpose of leveling the base, to which two side pieces are nailed, having the angle, x, equal to the co-latitude of the place.

Various - Scientific American Supplement, No. 601, July 9, 1887