Then Cesare Lombroso entered the arena leading a camel. According to the Italian criminologist, the camel’s hump had been first acquired by bearing loads and then transmitted by heredity. From the fact that the camel and the llama, which is smooth backed, have something in common, he concludes that camels are really llamas that have recently acquired a hump in the performance of their labors. Lombroso also supported his hump theory by some statements about Hottentot women having developed callouses on their hips by carrying their children on their backs. Unfortunately all Lombroso’s ingenuity was wasted for we happen to possess the geological record of the camel in good condition, and from this history we know that the “ship of the desert” had his hump before the human race appeared when according to Lombroso he should have been a smooth-backed llama. Disappointed as Weismann’s critics were it was hardly feasible to argue that the camel had gotten his hump in those early times by placing loads on his own back. It was clearly seen that if a case of the transmission of a mutilation could be established, Weismann’s theory would be thereby demolished. A remarkable attempt was made in this direction in 1887 at the meeting of the Association of the German Naturalists at Wiesbaden. To that dignified gathering came Dr. Zacharias with a number of tailless cats. It was asserted that these cats had no tails because their mother had lost her tail through having it run over by a cart wheel. The examination of these specimens proved an entertaining diversion from the regular proceedings, and Prof. Eimer took them seriously enough to refer to them in a later work as “a valuable instance of the transmission of mutilations.” Weismann, however, refused to be put down. He insisted that in the absence of absolute certainty as to the cart wheel incident, they did not fulfill the first condition of scientific evidence, and Dr. Zacharias wisely admitted later, that this point was well taken. Prof. Poulton had described certain cats with extra toes which he had kept under surveillance for seven generations. “It would be equally justifiable,” says Weismann, “to derive cats with extra toes from an ancestor whose toes had been trodden on, as to derive the tailless cats of the Isle of Man from an ancestor of which the tail had been cut off by a cart passing over it, and thus to regard the existence of the race as a proof of the transmission of mutilations.”