But how do Boa Constrictors swallow goats and antelopes, and other large animals whole? The process is very simple; the lower jaw is not united to the upper, but is hung to a long stalk-shaped bone, on which it is movable, and this bone is only attached to the skull by ligaments, susceptible of extraordinary extension. The process by which these serpents take and swallow their prey has been so graphically described in the second volume of the “Zoological Journal,” by that very able naturalist and graceful writer, W. J. Broderip, Esq., F.R.S., that we shall transcribe it, being able, from frequent ocular demonstrations, to vouch for its correctness. A large buck rabbit was introduced into the cage of a Boa Constrictor of great size: “The snake was down and motionless in a moment. There he lay like a log without one symptom of life, save that which glared in the small bright eye twinkling in his depressed head. The rabbit appeared to take no notice of him, but presently began to walk about the cage. The snake suddenly, but almost imperceptibly, turned his head according to the rabbit’s movements, as if to keep the object within the range of his eye. At length the rabbit, totally unconscious of his situation, approached the ambushed head. The snake dashed at him like lightning. There was a blow—a scream—and instantly the victim was locked in the coils of the serpent. This was done almost too rapidly for the eye to follow; at one instant the snake was motionless—the next he was one congeries of coils round his prey. He had seized the rabbit by the neck just under the ear, and was evidently exerting the strongest pressure round the thorax of the quadruped; thereby preventing the expansion of the chest, and at the same time depriving the anterior extremities of motion. The rabbit never cried after the first seizure; he lay with his hind legs stretched out, still breathing with difficulty, as could be seen by the motion of his flanks. Presently he made one desperate struggle with his hind legs; but the snake cautiously applied another coil with such dexterity as completely to manacle the lower extremities, and in about eight minutes the rabbit was quite dead. The snake then gradually and carefully uncoiled himself, and finding that his victim moved not, opened his mouth, let go his hold, and placed his head opposite the fore-part of the rabbit. The boa, generally, I have observed, begins with the head; but in this instance, the serpent having begun with the fore-legs was longer in gorging his prey than usual, and in consequence of the difficulty presented by the awkward position of the rabbit, the dilatation and secretion of lubricating mucus were excessive. The serpent first got the fore-legs into his mouth; he then coiled himself round the rabbit, and appeared to draw out the dead body through his folds; he then began to dilate his jaws, and holding the rabbit firmly in a coil, as a point of resistance, appeared to exercise at intervals the