This overlooks the melancholy possibility of an extinction of Pigs, but it may be accepted on the whole as true. And against this Mr. Belloc gives us his word, for that upon examination is what his “Evidence” amounts to--that Types are Fixed. He jerks in capitals here in a rather convincing way. It is restrained of him, considering how great a part typography plays in his rhetoric, that he has not put it up in block capitals or had the paper perforated with the words: Fixed Types. “We have the evidence of our senses that we are surrounded by fixed types.” For weeks and months it would seem Mr. Belloc has walked about Sussex accumulating first-hand material for these disputations, and all this time the Pigs have remained Pigs. When he prodded them they squealed. They remained pedestrian in spite of his investigatory pursuit. Not one did he find “scuttling away” with a fore-limb, “half-leg, half-wing.” He has the evidence of his senses also, I may remind him, that the world is flat. And yet when we take a longer view we find the world is round, and Pigs are changing, and _Sus Scrofa_ is not the beast it was two thousand years ago. Mr. Belloc is conscious of historical training, and I would suggest to him that it might be an improving exercise to study the Pig throughout history and to compare the Pigs of the past with the Pigs of a contemporary agricultural show. He might inform himself upon the bulk, longevity, appetites, kindliness, and general disposition of the Pig to-day. He might realise then that the Pig to-day, viewed not as the conservative occupant of a Sussex sty, but as a species, was something just a little different as a whole, but different, definably different, from the Pig of two thousand or five thousand years ago. He might retort that the Pig has been the victim of selective breeding and is not therefore a good instance of Natural Selection, but it was he who brought Pigs into this discussion. Dogs again have been greatly moulded by man in a relatively short time, and, again, horses. Almost all species of animals and plants that have come into contact with man in the last few thousand years have been greatly modified by his exertions, and we have no records of any detailed observations of structure or habits of creatures outside man’s range of interest before the last three or four centuries. Even man himself, though he changes with relative slowness because of the slowness with which he comes to sexual maturity, has changed very perceptibly in the last five thousand years. MR. BELLOC A FIXED TYPE