The structure and physiology of the eye, as affording evidences of design, with illustrations : being the substance of a lecture delivered before the Loughboro' Literary and Philosophical Society, March 6th, 1855 / by B.W. Brown [sic].

  • Browne, Benjamin Webster.
Date:
[1855]
Catalogue details

Licence: Public Domain Mark

Credit: The structure and physiology of the eye, as affording evidences of design, with illustrations : being the substance of a lecture delivered before the Loughboro' Literary and Philosophical Society, March 6th, 1855 / by B.W. Brown [sic]. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    EXPLANATION. Fig 1.—Horizontal Section of the right human Eye-hall,—natural size, a—Sclerotic Coat, b—Cornea, c—Choroid, d d —Ciliary Processes. e e—Iris, f—Pupil. g—Optic Nerve. h—Part of the same laid open,—shewing the Central Artery, i—Retina, k—Vitreous Humour. /— Crystalline Lens, m—Anterior Chamber, containing the Aqueous Humour. 2. —The Three Humours of the Eye.—a—Aqueous Humour. b—Lens, c—Vitreous Humour, shewing its depression for the lodgement of the Lens. 3. —Horizontal Section of the right human Eye-ball, shewing the Cellular Structure, containing the Vitreous Humour. Magnified. 4. —Anterior Segment of a transverse section of the Globe of the Eye^ seen from within.—a—Divided edge of the three Tunics,—Sclerotic, Choroid, and Retina, b—Pupil, c— Iris,—the surface presented to view .in this section, being the Uvea, d—Ciliary Processes, c—Scalloped anterior border of the Retina. Magnified. 5. —Posterior Segment of a transverse section of the Globe of the Eye, seen from within.—a—Divided edge of the three Tunics,—the membrane covering the whole internal surface, is the Retina, b—Entrance of the Optic Nerve, with the Central Artery piercing its centre, and ramifying upon the R,etina. c—Opening of Soemmering, in the centreof the axis of the Eye,—frequently obscured by folds of the Retina after the Eye has been opened—Magnified. 6. —Under surface or base of the Brain—shewing the origin of the Optic Nerves, and others, which go to the Eye.— a—Optic Nerves, shewing their junction, b—Olfactory, or first pair, which supply the sense of smelling, c—Fifth Nerve of the right side of the Brain, cut off before it proceeds to the Eye. d d—Thud pair cut off as they