Note pp — BOOK IV.

The Bore of the Gullet is not in all Creatures alike answerable to the Body or Stomach. As in the Fox, which both feeds on Bones, and swallows whole, or with little chewing; add next in a Dog, and other ossivorous Quadrupeds, ’tis very large, viz. to prevent a Contusion therein. Next in a Horse, which though he feeds on Grass, yet swallows much at once, and so requires a more open Passage. But in a Sheep, Rabbit, or Ox, which bite short, and swallow less at once, ’tis smaller. But in a Squirrel, still lesser, both because he eats fine, and to keep him from disgorging his Meat upon his descending Leaps. And so in Rats and Mice, which often run along Walls with their Heads downwards. Dr. Grew’s Comp. Anat. of Stom. and Guts. Chap. 5.