After citing the rodents that combine to store food for the winter, or fall asleep about the time competition should set in; and the buffaloes which form immense herds to migrate across a continent to where food is plentiful; and beavers, which when they grow numerous, divide into two parties, and go, the old ones down the river, and the young ones up the river and avoid competition; after citing these and many others, he declares the mandate of nature to be: “Don’t compete!--competition is always injurious to the species, and you have plenty of resources to avoid it! * * * Therefore combine--practice mutual aid! That is the surest means for giving to each and to all the greatest safety, the best guarantee of existence and progress, bodily, intellectually, and morally.” The third chapter deals with “Mutual Aid Among Savages.” Here we meet the question as to whether the family is an ancient institution, antedating the tribe and clan or whether it appeared at a much later date as an outgrowth of the clan. Kropotkin takes the latter view as advocated by Morgan, Bachofen, Maine, Lubbock and Tylor, and rejects the former as presented by Starcke and Westermarck. The savage of anthropological research is shown to be a very different creature from the blood-thirsty monster of popular tradition. “Sometimes he is a cannibal, it is true, but not often, and then it is closely associated with economic necessity, and is abandoned when food becomes plentiful.” The custom of leaving old men in the woods to die, is bad enough, but not so bad as supposed. They usually carry the old man with them in their migrations until he himself grows tired of being a burden and begs to be killed. When this point is reached, he is given more than his share of food, and left in the woods to die, because no one has the heart to kill him. Infanticide is practiced from the same motive which induces savages to take all kinds of measures for diminishing the birth-rate--they cannot rear all of their children. In times of plenty it disappears. It was when these customs were enveloped in a religious halo and preserved as sacred ceremonies, after all necessity for them had disappeared, that they attained their most revolting characters.