The udder of the cow bison is very small, as might be expected of an animal which must do a great deal of hard traveling, but the milk is said to be very rich. Some authorities declare that it requires the milk of two domestic cows to satisfy one buffalo calf, but this, I think, is an error. Our calf began in May to consume 6 quarts of domestic milk daily, which by June 10 had increased to 8, and up to July 10, 9 quarts was the utmost it could drink. By that time it began to eat grass, but the quantity of milk disposed of remained about the same. +---------------------------------------------------------------+ | BISON AMERICANUS. | |(Adult cow, eight years old. Taken November 18, 1886. Montana.)| +---------------------------------------------------------------+ | (_No. 15767, National Museum collection._) | +---------------------------------------------------------------+ | | Feet.| Inches. | |Height at shoulders | 4 | 10 | |Length, head and body to insertion of tail| 8 | 6 | |Depth of chest | 3 | 7 | |Depth of flank | 1 | 7 | |Girth behind fore leg | 6 | 10 | |From base of horns around end of nose | 3 | | |Length of tail vertebræ | 1 | | +---------------------------------------------------------------+ 10. _The "Wood," or "Mountain" Buffalo._--Having myself never seen a specimen of the so called "mountain buffalo" or "wood buffalo," which some writers accord the rank of a distinct variety, I can only quote the descriptions of others. While most Rocky Mountain hunters consider the bison of the mountains quite distinct from that of the plains, it must be remarked that no two authorities quite agree in regard to the distinguishing characters of the variety they recognize. Colonel Dodge states that "His body is lighter, whilst his legs are shorter, but much thicker and stronger, than the plains animal, thus enabling him to perform feats of climbing and tumbling almost incredible in such a huge and unwieldy beast."[32] [Note 32: Plains of the Great West, p. 144.] The belief in the existence of a distinct mountain variety is quite common amongst hunters and frontiersmen all along the eastern slope the Rocky Mountains as far north as the Peace River. In this connection the following from Professor Henry Youle Hind[33] is of general interest: [Note 33: Red River, Assinniboine and Saskatchewan Expedition, II p. 104-105.]