John Victor Lacroix (1882-? ) was the author of Animal Castration (1915) and Lameness of the Horse (1916). He was a professor of surgery at the Kansas City Veterinary College. "All that can be known on the subject of lameness, is founded on a knowledge of anatomy and of the physiology of locomotion. Without such knowledge, no one can master the principles of the diagnosis of lameness. However, it must be assumed that the readers are informed on these subjects, as it is impossible to include this fundamental instruction in a work so brief as this one. "