Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 450
ture of the object on this plate. 390. The human eye. — Pig. 329 represents a horizontalsection of this wonderful organ. Covering the front of theeye, like a watch-crystal, is atransparent coat 1, called thecornea. A tough membrane 2,of which the cornea is a con-tinuation, forms the outerwall of… … 430 ETHEK DYNAMICS. prevents internal reflection. The inmost coat 4, called theretina, is formed by expansion of the optic nerve 0. Themuscular tissue ii is called the iris; its color determinesthe so-called color of the eye. In the center of the iris isa circular opening 6, called the pupil, whose…
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
