“With reference to the statement that the female Thomson’s Gazelle has no horns, I can, perhaps, give some explanation. The horns of the female of this species (see the skulls given by me to the British Museum) are very frail, crooked, and generally malformed. A good pair would be about five inches long; but a very slight blow will break or knock off these horns. Four or five females of this Gazelle that I have shot have knocked off one or both horns when falling to the shot or in their subsequent struggles. “A doe of this species born in the fort at Kikuyu developed horns; but in play with the rest of the herd of five, knocked them off when they were not more than two inches long, and when I last saw her there were two warty scars where the horns had been. I should think that a similar accident is probably a very common occurrence among the wild herds; so much so, that I should not be surprised to see a herd of does ‘without horns.’ The yearling fawns running with their mothers would have horns not more than half an inch long, and therefore invisible. If a man, for any reason, were to shoot a doe out of such a herd he would probably choose the largest animal. Afterwards, if the question were raised, he would say that he saw a herd of does of Thomson’s Gazelle absolutely hornless, and on shooting one found there were only little marks on the head where the horns would have been if the animal had had any. “I have myself seen hundreds of these Gazelles in Ukambaui, some without horns, some with one, and some with both horns. Of those I have shot or seen shot myself, two were without horns, one had one horn about three inches long, and four had both horns averaging three and a half inches in length, while two had horns about three-quarters of an inch long.” Passing on to German East Africa we find, from Dr. Matschie’s volume on the Mammals of that country, that Thomson’s Gazelle was met with by Herr Oscar Neumann at various points on his journey north from Tanga to the Victoria Lake. Mount Gurui, Lake Manyara, Ndalalani on the Natron Lake, and the district between Guasso Nyiro and Ngare Dobasch are specially mentioned, but north and west of the latter locality Herr Neumann did not find it. It was also obtained near Mount Meru by Herr v. Höhnel, and in Northern Irambi by Herr Stuhlmann.