458 FARR ET AL. 



mately 4.7 X 10^^ thermal neutrons per square cm to the brain surface) 

 showed no histologic changes attributable to the neutron exposure in either 

 neoplastic or normal brain tissue. 



The difficulties in transposing the observed neutron exposure intensities 

 into rad units are discussed. 



References 



Farr, L. B. 1957a. Les applications mcdicales des reacteurs nucleaires. Bruxelles-med. 

 37, 843-858. 



Farr, L. E. 1957b. Present progress in neutron capture therapy. Acta Rad. Interam. 

 7, 64-76. 



Farr, L. E. 1959. The Brookhaven medical research reactor. Science 130, 1067-1071. 



Farr, L. E., Sweet, W. H., Robertson, J. S., Foster, C. G., Locksley, H. B., Suther- 

 land, D. L., Mendelsohn, M. L., and Stickley, E. E. 1954. Neutron capture therapy 

 with boron in the treatment of glioblastoma multiforme. Am. J. Roentgenol. _ 

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Farr, L. E., Robertson, J. S., Stickley, E. E., Bagnall, H. W., Easterday, O. D., and 

 Kahle, W. 1959. Recent advances in neutron capture therapy. Proc. 2nd Intern. 

 U.N. Conf. on Peaceful Uses of Atomic Energy, Geneva, 1958 .., . See also 

 1958, Isotopes in Med. 26, 451-456; 1959, "Progress in Nuclear Energy," Ser. VII, 

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Farr, L. E., Calvo, W., Kahle, W., Hochdorph, O., Yamamoto, Y. L., Yakolev, P., 

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 cranial gliomas and sarcomas: Neuropathological study of 16 cases. To be published. 



Godwin, J. T, Farr, L. E., Sweet, W. H., and Robertson, J. S. 1955. Pathological 

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Lippincott, S. W., Robertson, J. S., Bond, V. P., Cronkite, E. P., Easterday, O. D., 

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 from the B'" (n, a) Li' reaction in pig skin. A.M.A. Arch. Pathol. 68, 639-650. 



Lippincott, S. W., Yamamoto, Y. L., and Farr, L. E. 1960. Radiation effect of 

 neutron capture therapy on a malignant vascular neoplasm of the cerebellum. 

 A.M.A Arch. Pathol. 69, 44-54. 



