...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」
...Procerebral: that segment of the brain containing themedian protocerebrum and optic ganglia; also called opticsegment...
John. B. Smith 「Explanation of Terms Used in Entomology」
...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」
...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」
...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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