Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 354
round its axis. The eye consists essentially of four coats, ormembranes, called the Sclerotic coat, theChoroid coat, the Cornea, and the Ketina ;and these coats inclose three transparent liquids, called hu-mors—the Aqueous humor, tlie Vitreous humor, and theCrystalline humor, the last of which has… … Of what partsdoes the eye consist ? membrane, and to it themuscles which move theeye are attached. It cov-ers about four fiftlis of thoexternal surface of theeye-ball, leaving, however,two circular openings, onebefore and the other be- ^.hind the eye. Its positionis shown at i, Fig. 283. The Cornea…
Physics · Science · Technology
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