There is no question before the profession or the laity that commands so much interest and even anxiety as that of the presence and mortality of carcinoma.
For many years there have been more or less sporadic efforts toward the investigation of the subject, but it is only within the last decade that serious attempts have been made in that direction. In that period various institutions have been established for the specific purpose of investigating this disease in all its relations, social, biologic, physiologic, chemic and pathologic. Although there has been no one discovery to stand forth beyond all others, yet valuable work has been done and is being done. The question was such a comparatively new one that much labor had to be expended in clearing the field from dead wood. Many ideas and theories had to be eliminated. With the field once cleared progress can be made much