1. Anderson, D. W., J. J. Hickey, R. W. Risebrough, D. F. Hughes, and R. E. Christensen: Significance of chlorinated hydrocarbon residues to breeding pelicans and cormorants. Can. Field-Naturalist83, 91 (1969).
2. Bagley, G. E., W. L. Reichel, and E. Cromartie: Identification of polychlorinated biphenyls in two bald eagles by combined gas-liquid chromatography-mass spectrometry. J. Assoc. Offic. Anal. Chem.53, 251 (1970).
3. Bailey, S., and P. J. Bunyan: Interpretation of persistence and effects of polychlorinated biphenyls in birds. Nature236, 34 (1972).
4. Berlin, M.: PCB effects on mammals. National Swedish Environ. Protection Board 43-50 PCB Conf., Sept. 29, 1970, Solna, Sweden.
5. Bush, B., and R. Dell'Acqua: Personal communication (1972).