A species of fixed oil, familiarly used in China for the same economical purposes for which olive oil is employed in Europe, has been ascertained by recent travellers in China to be produced in all probability by the tea-plant, or another species of the same natural family. The author assigns reasons for believing that it either is, or may be, obtained from the seeds of various species of the two genera Thea and Camellia. It has been hitherto almost unknown in Europe. It is when fresh quite free of smell, of a pale yellow tint, without any sediment when long kept. It resists a cold of 40° F., but at 39° becomes like an emulsion. Its density is 927. It is insoluble in alcohol, sparingly soluble in ether. It burns with a remarkably clear white flame.