power of expanding and contract- ing the pupil, for the purpose of regu- lating the supply of light to the retina (c), or third and last coat which les im- mediately on the choroid. It as) trans- parent, very complex, and the only part FIG. 5 of the eye we shall carefully consider. is formed by… … which is next the vitreous humor; 6 ultimate parts of the retina (Fig. 2), consists of the layer of optic nerve fibres; cis a layer of grey nerve cells; ad, two thence along the optic nerve fibres to layers in which the principal retinal the brain. We are inclined to regard the blood wessels are…
Magic tricks
Internet Archive · Public domain (published before 1931). Free to use for anything.
