Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 729
Moulding Carbon Rods. … Discharging the Mould. the plates or rods chiring the carbonizing process. The boxor crucible must be closed by a non-combustible cover andplaced in a furnace or range fire in such a wa}- as to cause itto be heated gradually to a red heat. After the box be- MECHANICAL OPERATIONS. 707 comes heated…
Physics · Lantern projection · Electric apparatus and appliances
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