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much used for cooking-ve els, especially in the the form of tin-plate. Tin is also used in the prep a¬ ration of several important alloys, such as bronze, pewter, Britannia metal, bell-metal, etc. It does not occur in the native state, the tin of commerce being obtained from the dioxide, the known to miners as tinstone. The chief Euro¬ pean supply of this mineral is derived from the mines of Cornwall. It is also met with in the Malayan peninsula, the isle of Banca, and Aus¬ the tralia. Deposits have been found in the United