Outlines of comparative anatomy : intended principally for the use of students / by Andrew Fyfe.

  • Fyfe, Andrew, 1754-1824.
Date:
1813
Catalogue details

Licence: Public Domain Mark

Credit: Outlines of comparative anatomy : intended principally for the use of students / by Andrew Fyfe. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    OF THE EYE, 1 HE Ei/e of Reptiles has been little attended to. There is some variety in the Eye-lids of the different orders. The Tortoise^ Crocodile^ and Frog kind, have three, as in Birds. The third is proportionally the largest. Some Reptiles v/ith Feet, and the SerpentSy have no Eye-lids, the common Integuments forming a kind of window, behind which the Eye moves freely. The Lacrymal Gland is as variable here as the Eye- lids. In \heSea Turtlei it is large and lobulated. The fresh water Turtle, the Frog, and Toad^ have Glands of diminutive size. In SerpentSy the Lacrymal Gland is wanting. In the Turtle and many Lizards, there is an Osseous Ming on the fore part of the Eye, composed of different plates, as in Birds. The Iris, in Reptiles, generally presents a beautiful gilding. The Ciliary Processes vary in length in different Rep- tiles. In the Turtle, they are observed with difficulty, but they leave a distinct impression upon the Vitreous Humour. In the Crocodile, they are prominent, and have a Plexus of Blood-vessels, which are very distinct- ly seen. The Lens is nearly of the same form as in Birds. The Optic Nerve passes through the bottom of the Eye