...The retractor oculi envelops the optic nerve betweenthe brain and the ball of the eye and becomes attached upon the external faceof the sclerotic tunic... 
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」
...—The frontal is almost three times aslong as it is wide; it is flat above with an emarginate dorsolateral margin thatforms the upper limit of the optic capsule...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...Anteromedially,the parietal forms the roof and posterior margin of the optic foramen...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...On the other hand, they have, as a rule, before or behind themouth, a bulbous sense-organ (auditory vesicle or organ of equilibrium,g), and many of them have also a couple of simple optic spots...
Ernst Haeckel 「The Evolution of Man」
...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」
...At least he was alive; he could see wellenough with the one good optic...
Various 「Astounding Stories of Super-Science, December 1930」
...when all the deep unsounded skies
And as with optic glasses her keen eyes
Regions of lucid matter taking forms...
Richard A. Proctor 「Myths and Marvels of Astronomy」
...Investigation of the cause of that indistinctness of vision which hasbeen ascribed to the smallness of the optic pencil...
Edward Singleton Holden 「Sir William Herschel: His Life and Works」
...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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