RT Journal T1 THe uses of penicillin and streptomycin JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1949 FD August 20 VO 140 IS 16 SP 1309 OP 1309 DO 10.1001/jama.1949.02900510059033 UL http://dx.doi.org/10.1001/jama.1949.02900510059033 AB This small volume contains the text of the three Porter Lectures delivered by Dr. Keefer under the auspices of the University of Kansas School of Medicine. The first lecture presents a detailed discussion of the practical aspects of the use of penicillin and its various dosage forms in clinical practice. The second lecture presents a similar discussion for streptomycin. The third, and much shorter lecture, is historical and traces the development of the concept of antibiosis from the observations of Wollstein in 1876 on anthrax to the discovery of streptomycin. These lectures present a readable and useful summary of the practical and rational use of penicillin and streptomycin in everyday clinical practice.