. Animal life and intelligence. Biology; Animal intelligence; Psychology, Comparative; Evolution. Fig. 31.—The human eye. Horizontal section, to show general structure. iris and the corneal window of the eye is filled with a watery fluid. Behind the lens there is a transparent, semi- fluid, jelly-like material, filling the rest of the chamber of the eye. At the back of the eye is spread out the sensitive membrane —the retina. The structure of this mem- brane is very complicated, and cannot be described here. It is, however, indicated ^|i|||pl;!Jf|!' in Fig. 32. For our present purpose
. Animal life and intelligence. Biology; Animal intelligence; Psychology, Comparative; Evolution. Fig. 31.—The human eye. Horizontal section, to show general structure. iris and the corneal window of the eye is filled with a watery fluid. Behind the lens there is a transparent, semi- fluid, jelly-like material, filling the rest of the chamber of the eye. At the back of the eye is spread out the sensitive membrane —the retina. The structure of this mem- brane is very complicated, and cannot be described here. It is, however, indicated ^|i|||pl;!Jf|!' in Fig. 32. For our present purpose it is ^M0^§\c. sufficient to note that here are the end- ^w^y^/. organs of the optic nerve ; that these con- ~_ sist of a number of delicate rods and cones ; the eye. Enlarged and that these rods and cones do not face Smenf minute in the direction from which the light comes, *>., back of retina next but face towards the back of the eyeball, the outer coat; , , . , -, ?• . -tit layer of rods and cones; where a pigmented substance is developed. '.c, layer of ganglion- The rays of light are thus focussed through nerve-fibres;"/., front of the retina on to this pigmented substance; retina, the surface turned towards the pupii. the ends of the rods and cones are stimu- lated ; and the stimulation is handed on, augmented in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Morgan, C. Lloyd (Conwy Lloyd), 1852-1936. Boston, Ginn
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Keywords: ., booksubjectanimalintelligence, booksubjectpsychologycomparative
