The first treatment, therefore, which is given to these patients is potassium acetate, as previously mentioned, in combination with nux vomica, and some cascara, and rumex fluid extract; this latter is one of the old alternative remedies which I have used for years with most favorable results in certain skin diseases. In some of the cases related two years ago and in some of those I shall report in the next lecture, this mixture, with little variation, has been employed almost from the first to the last, with occasional alternation with other remedies. Dr. Ross has used principally the citrate of potassium and phosphate of potassium combined, which he gave in doses up to 90 grains per day, and even more. I have quite recently used the same, though in smaller doses, but it is too soon to report any results, and do not know if they will serve better than the acetate, which I have so long employed. Dr. Ross makes the interesting statement that, having used enormous quantities of potash salts in his practise for fifteen years, for various complaints, not one single case of cancer had ever to his knowledge occurred amongst the clientele of his own practise, though he had constantly been engaged in operating on cancer sent to him by other medical men. I made much the same remark in one of my former lectures (p. 152), though I did not ascribe it wholly to the acetate of potassa which I have long used so freely, but to the additional normal salts which I got from a strictly vegetarian diet. I would not have you to understand that this is all that is to be done medically for cancer patients; on the contrary, as the case goes on over a period of time, a thousand changes may be necessary to meet symptoms as they present themselves. And here arises the difficulty of making exactly plain wherein lies the successful internal treatment of cancer; for unless just the proper care is given at the right time all may not go well. For this reason these patients should be seen at least once a week, and for months, and the exact state of the system learned by volumetric analyses of the urine and occasional studies of the blood, in addition to the ordinary watching of the pulse, tongue, sleep, mode of life, exercise, fresh air, absence of worry and nerve strain, diet, etc.