...The optic nerve appears to have retained its healthlong after the crystalline lens has parted with its transparency... 
Dinks, Mayhew, and Hutchinson 「The Dog」
...Behind it is pierced by the optic nerve; in front it is continued asthe ciliary processes, which form, as it were, the rim of the bell...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Fenestrate membrane: of the compound eye is at the baseof the ommatidia, at their junction with the optic nerve; seeretina...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Immediately under the sclerotic we find a very delicate, dark-red membrane,very rich in blood-vessels—the choroid coat—and inside thisthe retina (o), the expansion of the optic nerve (i)...
Ernst Haeckel 「The Evolution of Man」
...It can only be saidpositively that the peculiar ontogeny of the complicated optic apparatus in manfollows just the same laws as in all the other Vertebrates...
Ernst Haeckel 「The Evolution of Man」
...The olfactory nerves are small, and so are the optic nerves; but the fifth pair, which supply the muscles of the face, are uncommonly large...
David Collins 「An Account of the English Colony in New South Wales, Vol. 2」
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