oe TABLE I Short Term Killing Effects Estimated Single exposure (acute) body burdens for men (170 pounds) which result in killing 50% of the exposed individuals within 30 days. Source of Data _ Micrograms Botulinus Toxin Guinea Pig 0.1 Tetanus Toxin Guinea Pig 0.1 Diptheria Toxin Prosgene Guinea Pig Man chez,G8s Mouse 10,000 Bufotoxin Cat 20 , 000 Rat 790, 000 (Spiled Food) (Lock Jaw) (Rattlesnake venom) (Toad Poison) a -napthol-thio-urea (Rat Poison) DDT (Insecticide) Phos phorus~32 Iodine=131 Cesium-137 Tritium-3H Dog Microcuries 35,000,000 Man Mouse i 100 1,000 Estimate for Man . Man Body Burden on Agent 0.6 \ 170,000 8 1,000,000 T,000 70,000 , 000 3,000 250,000