The same valued friend has corroborated the result of my observations respecting the number of eggs usually laid by this species, by stating as follows: “About the 11th of June, through the kindness of Dr J. W. HARRIS, I received three eggs, which had been taken from the nest of a Loon, made in a hummock, or elevated grassy hillock, at Sebago Pond, in New Hampshire.” The range of this species is immense. It occurs on the waters that fall into the Pacific Ocean, and has been observed on the Columbia River. In the Fur Countries it is plentiful; and, as I have already stated, it breeds in many parts of the United States. It is found equally in Europe, and the northern parts of Asia. In all these countries it moves southward on the approach of winter, and returns when the mild weather commences in spring. Unlike the Cormorant, the Loon usually swallows its food under the water, unless when it happens to bring up a shell-fish or a crustaceous animal, which it munches for a while before it swallows it. Fishes of numerous kinds, aquatic insects, water-lizards, frogs, and leeches, have been found by me in its stomach, in which there is also generally much coarse gravel, and sometimes the roots of fresh-water plants. Although the flesh of the Loon is not very palatable, being tough, rank, and dark coloured, I have seen it much relished by many lovers of good-living, especially at Boston, where it was not unfrequently served almost raw at the table of the house where I boarded. A female bird particularly examined by me presented the following appearances. From the point of the bill to the end of the tail it measured 34 inches; to the claws 41; the extended wings were 71; the bill measured 5 inches along the gape; the breadth of the body was 8 inches, its depth only four; the wings were 2 inches shorter than the tail; and the weight was 10 lb. 11 oz. avoirdupois. The first primary was longest. The trachea, which was even and flattened, being in diameter about 5/8 of an inch by 1/2 inch, was 16 inches long. The eggs were numerous. The gizzard was moderate, and contained many large pebbles. The intestines were 7 feet long, and about the same size as a Swan’s quill. Every bone and sinew was strong and tough. The tongue resembled in shape and size that of the Ivory-billed Woodpecker. The bones of the wing and leg were almost solid, the cavity for the marrow being very small. All the bones of this specimen were presented to Mr THOMAS ALLIS, of the Friend’s Retreat, near York.