We have collected in our clinic for the eleven years ending Jan. 1, 1922, 255 histories of breast lesions. In 1910 no benign tumors were operated on; in 1921, 50 per cent, of the breast tumors removed were nonmalignant. This is a striking illustration of what education has done. Many women apply for examination who have no lesion at all. This is due to improper palpation by the patient and sometimes by the examiner. Breast tissue, when picked up by the hand, gives an erroneous feel of a tumor; but when the breast is palpated by the tips of the extended fingers, it flattens out over the chest wall, and a lump can then offer definite resistance. The average age of breast patients was 42.3 years. The youngest patient was a boy, aged 12, with a sarcoma of the left breast. A tumor had been in existence nine years, and