werk £48 aa Ps CMU ETL BE Fu Tw DES Vp pe CAS ws SPURN. Gers eI L information. I have esked our Divisions of Operational Safety and Biology end Medicine to study the matter and develop the information necessary to come to a decision. Cordially, Chairman The Honorable Stewart L. Udall Secretary of Interior cc: Secretary (2)// GM DGM AGM EAGM AGMRD DOS sf DBM: CLDUNHAM: eow oo. 6) } ox BEST COPY AVAILABLE