Oils

[Fr., from F. oleum.] Greasy substances a arts, and in medicine, and the fruit for de ert and other ornaments. The finest opal comes from transparent, white, yellow, green, red, or brown, and has no play of colors. concave lenses of low powers, for seeing clearly rattier than magnifying objects at no great dis¬ tance, such as scenery and buildings, and the interiors of operas, theatres, etc. vegetable extract which is the most active of all narcotics, and a valuable medicine. It is obtained from the dried juice of the opium poppy, which grows wild in many parts of Asia, and is now largely cultivated in India, Persia, and China, and to a considerable extent in some parts of Europe. Much of the opium raised in India is sent to China, where it is largely used for smoking, with baneful effects. As a medicine it lelieves pain, allays irritation of the nervous system, and produces sleep. Morphia is the pial animals, found only i n America. The best known is the (Usier. common Virg i n i a opos¬ sum, found all over the Os/mose. United States. In size it is about as large as a cat, but in shape more like a rat. It Os/prey. has short legs, a very long tail cov¬ ered scales instead of hair, ex- Os/trich. c e p t at its base, and a sharp