The late Dr. Senn, the great cancer surgeon, admitted these facts in an interview given to Chicago press representatives upon his return from his trip around the world in 1906. The press clipping reads as follows. "Avoid Beauty Doctors" "Incidentally, Dr. Senn advises women who worry over their disfigurement of moles about their heads and shoulders to have those so-called beauty spots removed early in life, but he tells them they should not go to beauty doctors to have the operations performed. "He knows of hundreds of cases, he says, where cancer has resulted from the irritation of moles by an electric needle, or by constant picking it. 'Have a surgeon cut the mole out,' is his advice, as it will hurt little and leave no scar." To this we answered in our comments on the interview: "If the little knife of the beauty doctor causes cancer, what about the big knife of the surgeon?" In point of fact, our office records show that a large percentage of malignant growths are the direct result of surgical operations. Cancer Not a Local, But a Constitutional Disease For many years I have been teaching in my lectures and writings as well as in private advice to patients that cancer is a constitutional disease; that it is rooted in every drop of blood in the body; that it is caused by the presence of certain disease taints or of food and drug poisons in the system; that these poisons irritate and stimulate the cells in a certain locality and cause their abnormal multiplication or proliferation in the forms of benign or malignant tumors. I also claim that meat eating has much to do with the causation of cancer. Certain discoveries by Dr. H. C. Ross of London, England, confirm my claims that cancer is not at all of local and accidental origin, but that it is constitutional, and that it may be caused by the gradual accumulation in the system of certain poisons which form in decaying animal matter. One day, while experimenting in his laboratory, Dr. Ross brought white blood cells or leucocytes into contact with a certain aniline dye on the slide of a microscope and noticed that they began at once to multiply by cell division (proliferation). This was the first time that cell proliferation had been observed by the human eye while the cells were separated from their parent organism. Dr. Ross realized that he had made an important discovery and continued his experiments under the microscope in order to find out what other substances would cause cell multiplication. He found that certain xanthines and albuminoids derived from decaying animal matter were the most effective for this purpose and induced more rapid cell proliferation than any other substances he was able to procure. Dr. Ross obtained these "alkaloids of putrefaction," as he called them, from blood which had been allowed to putrefy in a warm place. He found that albuminoids derived from decaying vegetable substances did not have the same effect.