In an exceedingly valuable paper in the July number of the American Journal of the Medical SciencesDr. Samuel W. Gross, of Philadelphia, presents a study of 156 cases of sarcoma of the female breast, which will be all the more interesting to those familiar with the chapter on sarcoma in his work on "Tumors of the Mammary Gland;" in which is made the best existing attempt to determine the relations between the minute features and the clinical characters of sarcoma of the breast. As already said, the cases studied in this paper number 156, including 19 of the author's cases.
Of the varieties of sarcoma, says the author, the spindle-celled, which include the fibrous, constitute 68 per cent., the round-celled 27 per cent., and the giant-celled 5 per cent. of all cases. Of the subdivisions 50 per cent. are cystic, including the barren and proliferous cysts; 50 per cent,