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HIGH T.TBA.D BRONZE BOEINGS shall consist of clean bronze borings and turnings, shall have a copper content of not less than 70$, a tin content of not less than G$, a zinc content of not more than 4$ an antimony content of not more than 1.75$, and total other impurities of not more than 0.50$, and shall be free of grindings and all foreign material, but may contain a total of not more than 2$ combined free iron, oil or other moisture. BED TROLLEY WHEELS shall consist of clean genuine red trolley wheels and shall be free of bushings, iron and dirt. NO. 1 TINNED COPPER WIRE shall consist of clean, bright, tinned copper wire or cable, shall have a copper content of not less than 98,5$ and shall be free of tinned wire or cable which is smaller than i 16 B&S wire gauge and all foreign substances, BRONZE PAPER MILL WIRE CLOTH shall consist of genuine Fourdrinier wire cloth and screen; shall have a copper content of not less than 82$, a tin content of not less than 3$, and a lead content of not more than 1$; shall be free of copper, low brass or yellow brass screens and free iron, and may contain a total of not more than 1$ combined pulp and dirt. ALUMINUM BRONZE (FORD) GEARS shall consist of clean Ford gears and other clean aluminum bronze gears containing 9 to 12$ aluminum. SOFT RED BRASS (NO. 1 COMPOSITION) shall consist of miscellaneous red brass castings; shall have a copper content of not less than 81$, a tin content of not less than 3|$, and a lead content of not more than 7$; and shall be free of iron, pot pieces, burnt brass, cocks and faucets, railroad car boxes, manganese bronze castings, silicon bronze castings, and aluminum bronze castings. - 4 -