water, but could not induce them to get on the land. Three escaped singly by diving; my companion gave chase to the last one, and the minute he did the other nine made a dash for the grass, running over the water and then diving. Two or three little heads could be seen just sticking up above the water in the edge of the grass. All but one escaped us. Erismatura jamaicensis. Fairly common. Two or three very high males. The remainder were young and females. Kanthocephalus xanthocephalus. Two or three. Enplagius cyanocephalus. Three or four. Cathartes aura. Several soaring. Botaurus lentiginosus. One. We saw several nests built of green grass, the floor of the nest being usually about four inches above the water. One nest had the grown my grass worn partly over it making sort of a dome. My companion said they belonged to Fulica americana. Sturmella magna. One or two. Larus ludovicianus. One July 6, 1909. This morning I saw a few gulls and several Nycticorax nycticorax on the sand along the mole. On the fifth I saw four Larus philadelphia on San Leandro's Bay. This morning I noted Larus heermanni and Larus occidentalis on S.F. Bay.