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FOODS, METALS, AND GEMS OF INDIA 153 Gold and silver, tou-shi (a sort of native brass), white jade, and crystals are the natural products of the country, and are very abundant. Bare precious sub- stances of different sorts and various names are col- lected from the regions bordering upon the sea, and are bartered for merchandise. But in their commercial transactions, gold and silver coins, cowries, and small pearls are the medium of exchange/ AN INDIAN POT.
