selves, offers nothing different from what we see among many other mammals, and there is considerable evidence to support the statement that the female chimpanzee can be impregnated by man, and vice versa, there is every reason to believe that any male adult of the gorilla or chimpanzee can successfully impregnate the female of the genus Homo. Man experiences pain and pleasure just as other mammals do, and the same may be said for all the other emotions and feelings, as anger, fear, hatred, selfishness, greed, cowardice, bravery, and every other qualification of the kind known. The sensations experienced on the part of a frightened man and a frightened monkey are actually the same, identical in every particular, and in many instances the behavior is the same under the same circumstances. So on for grief, for spite, and for treachery. I have seen dogs, monkeys and many other animals that possessed just as keen a sense of right and wrong, as the average of mankind does, and as for the refinements of cruelty of all kinds toward their fellow species, man outclasses any other group of animals in the known world. Indeed, man is the most cruel animal in existence and by no means, as a rule, always the most cleanly. Men steal and murder, so do other animals; men deceive others in no end of ways, and so do other animals; men slay their own fathers, mothers, mates, children and friends and relatives, and so do other animals, though, in proportion, not as frequently. Men cohabit with their own mothers, daughters and sisters,— so do other animals. Auto-erotism in all its forms is practiced by both men and women all over the world. Other mammals usually confine themselves to some of the simpler forms of masturba-
