THE EUROPEAN BISON (Boo bonasus) is now extinct except for a few herds in the Caucasus and Lithuania. It appears not to have been truly domesticated and not to have crossed with domestic cattle. THE AMERICAN BISON (Bos bison) once extended in countless herds from Penn sylvania to the Rocky mountains but is now extinct as a wild species. A few thousand are preserved in the Yellow stone and other parks and on various private estates in United States and Canada. Our bison is therefore at pres ent in a state of semi-domestication. It breeds freely in captivity and when crossed with domestic cattle produces fertile crosses known as catalo. These hybrid animals are fertile both among themselves and with either of the parent species. They produce a shaggy coat good for robes, especially when the buf falo is crossed on the Galloway cattle.