EGG, CHEMISTRY OF. An ordinary good-sized hen's egg weighs about 1000 grains, of which the white constitutes 600 grains, the yolk 300, and the shell 100. The white or glaire of the E. is a strong solution of albumen (q.v.) in water, and whilst readily miscible with water in its ordinary state, it becomes insoluble when subjected to heat, as iu boiling an egg. In 100 parts, the white or glaire of E. consists of—water, 80; dry albumen, 151; salts, etc., 4+. The yolk or yelk of the egg is composed of a strong solu tion of albumen, through which multitudes of minute globules of oil are suspended, which render it essentially an emulsion. In 100 parts, it consists of—water, 53t; dry albumen, 17+; oil (with small proportion of salts), 281.
EGG, or EIGG, an island 12 m. off the w. coast of Inverness-shire, and 8 m. s.w. of the s. point of Skye. It is 4+ m. long by 2+ broad. It consists chiefly of trap, which in the n. alternates with sandstone and limestone, the latter rocks containing oolitic fossils,
carbonized wood, and coal. The scuir of Egg, in the s.w., rises 1339 feet. The upper 470 ft. of this hill is a mass or vein of pitchstone, m. long, and 100 ft. broad. Some of the pitchstone forms straight, inclined, or curved columns, from a few inches to nearly two feet in-diameter. in one place, the pitchstone overlies red sandstone, con glomerate, trap, aid the silicified wood of an oolitic pine. In the s. part of the isle is a large cave, entered by a narrow opening, through which only one person can creep at a time. Here it is traditionally,related that the laird of Macleod, to revenge an injury done to some of his clan, smoked to death all the inhabitants (200 Macdonalds) of the isle, who had hid themselves in the cave. Pop. '71, 282.