Since the publication of the first edition of this work under the title of Horn Measurements, I have been successful in collecting much new and valuable data bearing upon the measurements of horns and other statistics of Big Game. For this information I am to a considerable extent indebted to numerous sportsmen, and to the curators of some of the most important museums of the world, who have been kind enough to measure all the finest specimens in the collections under their charge. In addition to this valuable help, for which I desire to express my grateful acknowledgment, I have had a record carefully prepared of all the most remarkable specimens registered, as well as those that have from time to time passed through our hands. I am indebted to Mr. H. A. Bryden for much of the descriptive matter of the South African game. There will also be found embodied with all these new records numerous illustrations of typical heads, skulls, and horns drawn especially for this new edition.