157 Feb. 1 increasingly larger amounts, have subcutaneously in neck region. Blood drawn from Rhesus in horse's neck. Formed elements allowed to clot & settle out. Then serum filtered and dried. White powder results. Powdered serum will keep for 5 yrs. especially if refrigerated. The serum is mixed with normal saline (?) for injection - perhaps it was distilled water. 60-100 cc. may be injected for a cobra bite, relatively more for children. The cobra is common in the central Valley and causes the most bites. It occurs even in Bangalore and one very large one was caught recently in back of one of the hotels. The cobra (Naja naja) has a venom 10 times more potent than king cobra venom but the latter injects a large quantity, hence is regarded as very dangerous. Russell's Viper and the Malayan Pit viper have hemorrhagic venoms. The Krait has a venom with both neurotoxic and hemotoxic effect. The cobras have neurotoxic venoms. In the case of Russell's Viper there is much bleeding from the mouth & digestive track - emoli form, at least in small faunerals. There are also species of Tremeresaurus which have a hemolytic venom but these snakes are not as dangerous as the others. Three species of [illegible] sea snakes occur along the Thailand coast and fishermen are sometimes bitten. However, the venom glands are so small, the Institute has not found it possible to prepare anti- venom. Many people come in for treatment that