Although all statistics show a steady and alarming increase in the death rate from cancer when regarded and treated as a surgical disease, it is probable that this course will be persisted in until sufficient evidence is accumulated to satisfy the medical profession and the laity that relief can be obtained by other means. For, as the drowning person catches at a straw, so the cancer patient hopes against hope that an operation will be permanently successful in this particular case, though the odds are so immeasurably against it. You have already seen some patients who have illustrated the possibility of controlling cancer by dietary and medical measures, and in the next lecture I shall hope to show and report other cases and present statistics which will further illustrate this possibility. We will now consider briefly what this dietary and medical treatment of cancer consists in, and how it is to be carried out, and also the bearing of all this on the prophylaxis of cancer. In order to make this clear I must more or less repeat some things that I have said in former lectures. We have seen that, as shown by the kidney excretion and the condition of the blood, the metabolism is deranged, both in the early and late stages of cancer. We have seen that the nitrogenous and sulphur partition is materially different from that of health, and reason indicates that in some way protein, or rather its metabolism, is at fault. We have seen that there is a deficiency in the urinary secretion, not only as to the actual quantity, but also that the total urinary solids are commonly far below the normal, often not half the amount required for the body weight of the individual. We have seen that the intestinal excretion is commonly imperfect and that constipation is the rule in these cases, even long before the administration of anodynes. The secretion from the skin is also generally defective, and the tissues dry and harsh, and the saliva is generally acid. All these, and perhaps other, elements point to a faulty performance of the bodily functions, and to erroneous or deficient elaboration and elimination of the waste products of the body; these latter are known to be toxic to animals, and we know that in the human system they lead to an auto-intoxication and derangement of the blood stream, which in turn causes faulty cell and tissue action. Such a condition is recognized in gout, as causing the local inflammatory manifestations, and in rheumatism, which is so common in cancer subjects. All recognize that obesity is due to some nutritive change, naturally acting through the blood, and it is well known that cancer is peculiarly rebellious in those subject to obesity. Diabetes likewise relates to a peculiar blood condition, and there have been many observations concerning the relation of diabetes to cancer. All these diseases and many more have their foundation in faulty nutrition, depending largely on dietary errors.