RT Journal T1 PRactical treatise on medical diagnosis for students and physicians. JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1899 FD December 23 VO XXXIII IS 26 SP 1631 OP 1631 DO 10.1001/jama.1899.02450780063030 UL http://dx.doi.org/10.1001/jama.1899.02450780063030 AB The appearance of a third edition of a work of this class, within six years, is sufficient evidence that it is appreciated as a valuable contribution, and also, in the present case, of marked advances in our knowledge of its subject. The present volume has been largely rewritten, some sections entirely, and very considerable changes have been made in its arrangement. New chapters have been written and a total of nearly 150 pages added to the volume over the preceding edition. The chapters on infectious diseases have been transferred to the general section of the work, from that of special diagnosis, and much new matter has been added. This can also be said of the whole section on general diagnosis, which fills some 400 pages as compared to less than 180 in the third edition. Nearly all the chapters have new headings and are extensively revised, those on the nervous