Smithsonian Report, 1903. — Scriiott. 



Plate IV. 



FiQ. 9.— Preparing to Cut Hoofs of Musk Ox n i .u; ; nhagen, September 24, 1901. 



Fig. 1 0.— Surgeon Performing the Operation. 



Fig. 1 1 .—Two-year-old Musk Ox, New York Zoological Gardens, August, 1902. 



