OF APPENDIX D (Continued) Reference 41.... 42.... soit Bist, Dogs (bea-}.......... gles), Lambs...... 4.0.02... tonape Sr we. .025 Sr? ee. (0.25 retained), (0.05 retained). Ae pee eee Boe eee (0.005 re- Monkoys....) 2........ Sr? ee. tained). (10-4 retained), 2.0 44,, Goats....... Ao pec eee Qo ec cece ee 14....... Sr... 1.0 0.5 {1.-1.5) 45.... Steer....... leew... 2x 10-3 46.... Mice.......].......... qe fee eee ee eee 43,... 47.... SHATHOUV £0 “adie 48, 40. Sr? we, Sr... (3.5 retained) (2 retained) . Rats..... 0.0). ee fee ee eee (2 retained). (1 retained). Rabbits.... 0)... 0.0000.) 00.20 eee ee eee (0.9 retained) (0.85 retained) Mice.......[.......... Sr ol... 0.07 Rats........ [0.0.0.0 cele eee eee eee 0.25 Rabbits.....]..........]) Rats........) I....... 20... ee eee ee Sr? ee, Rabbits. ....)...0....0. 00,0000 cee eee eee ’ pee 1. 0.7 0.03 2 Estimated read/day in skeleton 7.5 75 Biological effects Comments | Experiment started spring 1954. He ee ew ee ew ee he ee ee ee Experiment started spring of 1954 15 1.5 0.03 1,000 150-250 0.5 1,200 660 660 330 330 280 12 40 160 120 330 Died at 13-56 days, acute radiation syndrome. Chronic toxicity experiments promised. 30 day LD50 about 1-1.5/pe/gm. injected, 50% retained. Suggestion of hemorrhagic condition under epiphyseal plate several months after active region left behind plate as bone grew. Similar condition observed in some inactive controls. 30 day LD5O.............2....... 150 day LD50.........0......000.. 30 day LDS... 0. ee ee, 150 day LD50.............0-..4.. 30 day LD50... 0.0.2.2... 0... 00485. 150 day LD50.......-............ Reduction in heterophils apparent. . Reduction in heterophils apparent. . . Reduction in heterophils apparent. . . Tumors in 10 of 19 rats........... 50% with bone damage. Tumors within Lyr................ FFD TMP IDFP va, SgSR Geenaeggs 4

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