The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 360
stop-cocks, 0 H, may be left entirely open, and the requisite amountof gases for each be regulated by the stop-cocks upon the opposite side ofthe cylinder. For illuminations with the Drummond Light, no arrangement now in useequals this in point of economy and convenience. For the preparation of… … njii ^:^.^
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
