[Footnote 1: It seems reasonable to suppose that granting the organism has such natural needs satisfied as sleep, warmth, pure air, sunshine, and so forth, fundamentally all susceptibility to disease is due to wrong feeding and mal-nutrition, either of the individual organism or of its progenitors. The rationale of nutrition is a far more complicated matter than medical science appears to realise, and until the intimate relationship existing between nutrition and pathology has been investigated, we shall not see much progress towards the extermination of disease. Medical science by its curative methods is simply pruning the evil, which, meanwhile, is sending its roots deeper into the unstable organisms in which it grows.] II PHYSICAL CONSIDERATIONS There are many eminent scientists who have given it as their opinion that anatomically and physiologically man is to be classed as a frugivorous animal. There are lacking in man all the characteristics that distinguish the prominent organs of the carnivora, while he possesses a most striking resemblance to the fruit-eating apes. Dr. Kingsford writes: 'M. Pouchet observes that all the details of the digestive apparatus in man, as well as his dentition, constitute "so many proofs of his frugivorous origin"--an opinion shared by Professor Owen, who remarks that the anthropoids and all the quadrumana derive their alimentation from fruits, grains, and other succulent and nutritive vegetable substances, and that the strict analogy which exists between the structure of these animals and that of man clearly demonstrates his frugivorous nature. This view is also taken by Cuvier, Linnaeus, Professor Lawrence, Charles Bell, Gassendi, Flourens, and a great number of other eminent writers.' (see _The Perfect Way in Diet_.) Linnaeus is quoted by John Smith in _Fruits and Farinacea_ as speaking of fruit as follows: 'This species of food is that which is most suitable to man: which is evidenced by the series of quadrupeds, analogy, wild men, apes, the structure of the mouth, of the stomach, and the hands.' Sir Ray Lancaster, K.C.B., F.R.S., in an article in _The Daily Telegraph_, December, 1909, wrote: 'It is very generally asserted by those who advocate a purely vegetable diet that man's teeth are of the shape and pattern which we find in the fruit-eating, or in the root-eating, animals allied to him. This is true.... It is quite clear that man's cheek teeth do not enable him to cut lumps of meat and bone from raw carcasses and swallow them whole. They are broad, square-surfaced teeth with four or fewer low rounded tubercles to crush soft food, as are those of monkeys. And there can be no doubt that man fed originally like monkeys, on easily crushed fruits, nuts, and roots.'