The study predicts future requirements for biological scientists by specialty area, future supply within area, and the effects of National Institutes of Health program alternatives on requirements and supply measures. At present and for the forseeable future, approved training grants for critical shortage areas are funded as rapidly as centers of high quality training are identified or established: anesthesiology, diagnostic radiology, clinical pharmacology, human genetics, nutrition, epidemiology, biometry, and medical scientist training programs. Four basic medical science departments will require moderate expansion: anatomy, microbiology, pathology, and pharmacology. For biophysics, biochemistry, and physiology, however, there are indications that the job market is approaching or has reached a saturation point. The study stresses that at the time a goal in biomedical research is recognized, it is too late to begin appropriate training of medical scientists, since such training requires five to eight years. An adequate training program therefore must be maintained in basic medical science areas. (NTIS)