the Philosophical Transactions, No. 469, p. 383, 386. "A sea-calf was shewn at Charing-cross, London, in the month of February, 1742-3. The figures given by Aldrovandus, Johnston, and others, being designed in profile, lead us into two errors. 1st. They make the legs apparent, though they are not visible externally in any position the animal is placed; and, secondly, the hind feet are represented like two fins, whereas they are two real feet, webbed like those of a water-fowl, each having five toes, composed of three articulations, and ending with darkish-coloured claws. The claws on the fore-feet are very large and broad, nearly like those of a mole, and seem to be designed for the purposes of crawling, and partly for swimming, as between each toe there is a narrow membrane; but the membranes of the hind feet are much larger, and only serve to row the animal along when in the water. It was a female, and died in the morning of the 16th of February, 1742-3. The hairs that were about its mouth were of a horny and transparent substance; its stomach, intestines, bladder, kidneys, ureters, diaphragm, lungs, great blood-vessels, and the parts of generation, were like those of a cow: the spleen was two feet long, four inches broad, and exceedingly thin; the liver was composed of six lobes, each of which was long and thin, like the spleen; the gall bladder was very small; the heart long, and of a soft texture, having a large foramen ovale, and the fleshy parts very considerable. In the lower stomach were about four pounds weight of sharp and angular pieces of flint, which seems as if the animal had swallowed them for the purpose of grinding its food. This animal is viviparous, and suckles its young by the mamilla, like quadrupeds, and its flesh is firm and muscular. Although it had attained seven feet and a half in length, yet it was but young, as it had scarcely any teeth; and it had four small holes regularly placed about the navel, which were the preceding signs of four teats to appear hereafter."