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On the Liquation of certain Alloys of Gold
29
F ig. 6.
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638-6 .638-8 (Ten per cent, zinc.)
Feeling a little diffident about these results, 1 recast the foregoing alloy of 'gold with. 10 per cent, of zinc, into the same mould. The results were as follows :— Fig. 7.
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899-e eso-e
(Ten per cent, zinc.)
This shows that there is still a tendency in this gold alloy with 10 per cent, of zinc to become enriched towards the centre.
This 10 per cent, alloy was then alloyed with a further 5 per cent, of zinc and cast into the same spherical mould. sThe weight of this sphere was 4-021 kilograms. The results were :—
