The structure of the eye, with reference to natural theology / [William Clay Wallace].

  • Wallace, William Clay
Date:
1836
Catalogue details

Licence: Public Domain Mark

Credit: The structure of the eye, with reference to natural theology / [William Clay Wallace]. Source: Wellcome Collection.

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    a third filled with fat, closely packed behind the expanded nerve, between the sclerotica and choroid. (Fig. 5.) ‘There is a cavity between the same coats in the halibut, filled with a gelati- nous fluid, (Fig. 6, 6,) which I at first thought was a reservoir of liquor, that, by external pres- sure, might be forced to the fore part of the eye to make it more convex; but by a closer examina- tion of its structure, a feels superior provision for ‘accommodating it to distances may be observed. In the shark, the jelly is encased in parallel tubes, which surround the front of the socket and pour it out on the skin, while at the back of the eye ters is the tint deposition of fat. Fig. 3—SECTION OF THE EYE. a Cornea; 6 Aqueous Humor; c Crystalline Lens; d Vitreous Humor; e Ciliary Processes; g Optic Nerve; h Ins; i Fold of Conjunctiva. Vitreous Humor.—About three fourths of the hollow globe of the eye is filled with the vitreous humor, (Fig. 3. d,) which is a watery fluid con-
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