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50, they were first explored, if not discovered, by Mr. Hoseason (who has for years rented the island and done his best to protect the bird life upon it) in the spring of the preceding year, and they were at that time tenanted by numbers both of shags and rock-pigeons, who sat incubating their eggs on any suitable ledge or projection of the rock. Of the latter birds, to-day, there were none, but several of the former, though so late in the season, were sitting on eggs which, to judge by their whiteness, must have been but lately laid, and, no doubt, represented a second brood, whilst others, whose young were still with them on the nest, although full-fledged and almost as big as themselves, plunged, attended by these, into the water. The hollow sounds of splash after splash were echoed and re-echoed from sea to roof, and the air seemed filled with sepulchral croakings. It was easy to follow these birds as they swam midway between the surface of the water and the white pebbled floor of the cavern, and I was thus able to confirm my previous conviction that the feet alone are used by them in swimming, without any help from the wings, which are kept all the while closed. I have many times observed this before, but never so clearly or for such a length of time.

The young birds, after diving, made for the nearest rock or ledge on to which they could scramble, and they were so unwilling again to take the water that some of them allowed themselves to be caught by us, though showing every sign of fear—indeed, of