Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 729
dried, they are packed in an iron box, or, ifthey are small, in a crucible, and completely surrounded bycoke dust to exclude air and to prevent the combustion oi Fig. 671. … Moulding Carbon Rods.
Physics · Lantern projection · Electric apparatus and appliances
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
