Hand-forging ........ 94 the furnace, and on mixing alloys 222 Britannia metal...... 224 186 Alloys of copper and tin only.... 185 Remarks on the alloys of copper Alloys of copper and lead only.. 186 Remarks on the alloys of copper Alloys of copper, zinc, tin and lead Tabular view of some of the prop- Weights of wrought-iron, steel, copper and brass wire and plates 209 Fusibility of alloys...... 217 M. Mallett's process for the pro- Polygonal vases of unequal sides. 285 Cutting nippers for wire. Tools for working in sheet met- Modes of bending curved work... WORKS IN SHEET METAL, MADE BY RAIS- ING; AND THE FLATTENING OF THIN Circular works spun in the lathe.. 300 303 304 |