Psychiatry in the Medical Specialties

females when the Y-antigen was present. The rather extensive recent data on the Y-antigen is reviewed. The possibility of a chromosomal abnormality being associated with the development of drug resistance (a-methopteran) was reported by Bieselle, et al. The Genetic Basis of Cell Resistance was discussed in the three papers presented in this section. The relations of hormones and viruses in the progression of mammary lesions in mice, with much new data, were presented by Dr. DeOme. Dr. Woolley discussed the genetic interpretationl of the acquired resistance to certain chemicals such as amethopterin-evolutional adaptation is the central theme for explanation. Bovine ocular carcinoma in Hereford cattle increased progressively with age, was higher among offspring of diseased parents, and also related to periocular pigmentation (Anderson, et al.). The final section on Heredity and Human Cancer was introduced by a paper on recent developments in human genetics by W. J. Shull. Both advances in content and in methods were discussed and included the challenging statement that the present approach cannot advance understanding of the origins of the more common cancers. N. E. Morton discussed methods of studying in human genetics with great anticipation for future accomplishment, and Dr. Macklin and Dr. Oliver presented their well-planned studies on the evidence of partial genetic involvement in human breast, gastric, and rectal cancer. The Bertner Foundation Lecture by Dr. Richard E. Shope was on the role of the virus and host in determining the host response to the fibromamyxoma virus complex. Both dynamic variables influence the clinical picture of the disease. At least four related viral entities vary in the responses manifest in diverse hosts. WILLIAM U. GARDNER