presenting the hardness of the different expressed by the formula Cn Za, and containing, in ALLOYS OF TIN AND ZINC. metals and their alloys by figures. 100 parts, 49.32 parts copper and 50.68 parts zinc, ‘Chemical Welzhe Contains in 100 Hardness. Pig tron 1600 post. For this purpose they used an… … the hardness of which is to be bioex broke. ‘The block broke when determined. A block of iron, G, supports the latter, Po Shi. peor 7138 200} “the 'polnt had pel jeontains 20 per cent more zine than any ordinary trated 7.64 inches, and the standard or fulcrum, W, can be raised or Pb Spa. ot 875 182…
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