aaa Biology and Medicine met in.Washington, March 17-18, 1952, Discussions which followed the mesting revealed that while present pcrsonncl monitoring methods are not entirely satisfactory, usable portable devices for adequate incasurement of n.utron flux over a wide range of energics nave been developed, With respect to biolosical effects, it was agreed that cataract formation in the eye lens sand action on the gonads (sterility and genetic effects) were probably the most critical neutron effects, and that these need evaluation entirely apart from any reference to a permissibl: exoosure linit of O.3r (roentecn-sauivalont-nan). Discussions relating to C-14 and to NeutronsDr. Tolbert Dr, Tolbert reported on the conference conducted by Dr. Brues of AIL wherein discussions ensued relating to toxicity of Cl4, He stated that there was 2 goneral agreement among those attending the mosting that it would be justified in case a need did arise to give a person Cl4 in tierapy studies to integratc the radiation dos over a veriod of three months for srriving at tolerance levels, Fallout Studies from Operations Buster and Jangle reenter Mr, Eisenbud presented several slides which depicted graphs of the fallout studics, He-stated that the results of all weathcr burcau collections were counted and extrapolated back to the time of