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Quinine, or Quinia

This is also obtained from Peruvian bark, being found in largest quantity in the yellow variety of the bark. It crystallizes in small white needles. It may be distinguished from cinchonine by the form of its crystals, and its solubility in ether. 4004. Quinoidine, or Amorphous Quinine is a yellow or brown resinous mass, identical in composition with quinine. Quinicine and quinidine are also varieties of quinine. (See Nos. 4025, &c.)