“ “ produced by venoms of _Viperidæ_, 179, 188, 189. “ not coagulated after death caused by venoms of _Colubridæ_, 171, 188, 189. “ of hedgehog toxic before heating, antitoxic afterwards, 226. “ of scorpion antitoxic, 279. Blood, toxicity of, in reptiles, 217. “ “ “ confers partial immunity to venom, 218, 219. “ “ “ destroyed by heating, 218. “ “ in venomous snakes, 217. Blood-corpuscles, red, agglutination by venoms, 202. “ “ dissolution only effected by combination of venom with blood-serum or lecithin, 197. “ “ dissolved by snake-serums, 219, 220. “ “ effects of venom upon, 196. “ “ resistance to large doses of venom, 199, 200, 201. “ “ “ “ “ “ explanation, 200, 201. “ “ washing of, important before presentation to action of venom, 196, 197. “ unaltered under action of simultaneous doses of venom and serum, 220. “ white, effects of venom on, 203. Bombay, laboratory for production of antivenomous serum at, 248, 252. Bonaparte, Lucien, chemistry of venom of vipers, 160. _Bothrops_, bites from, 353, 354. Bottard on venomous fishes, 288. _Boulengerina_, 58. “ _stormsi_, 58. _Brachyaspis_, 95. “ _curta_, 95. Brain, comparative action of venoms of _Colubridæ_ and _Viperidæ_ on, 185, 186. “ substance of, fixation of venom on, 186. Brazil, _Thalassophryne maculosa_ found on shores of, 303. Brehm, on _Crotalus confluentus_, 125. “ the daboia (_Vipera russellii_), 46. “ _Echis carinatus_ (efa, viper of the pyramids), 76, 77. “ reverence paid by Hindus to _Naja_, 38. Broad-headed snake, 94. _See also Hoplocephalus variegatus._ Briot, A., experiments with weever-venom, 298, 299. “ poison of _Scolopendra_ prepared by, 280. Bromized water, saturated, modifies or destroys venoms, 164. Brown snake, 87. _See also Diemenia textilis._ Brunton, Sir Lauder, on harmless ingestion of venom exceeding lethal dose, 214. _Bufo calamita_ (natter-jack), 318. “ _musicus_ (musical toad), 318. “ _viridis_ (green toad), 318. “ _vulgaris_ (common toad), 318. Bufotalin, 319, 320. “ first active principle of toad-venom, and cardiac poison, 319, 320. Bufotenin, 320. “ second active principle of toad-venom, and neurotoxic poison, 320. _Bungarus_, 30. “ venom of, active hæmolysing power possessed by, 199. “ _cæruleus_ (common krait), bite, cure of, 337. “ “ “ “ venom of, dose lethal for different animals, 174. “ _candidus_, 32. _Bungarus candidus_, resemblance to _Lycodon aulicus_, 33. “ _fasciatus_, 31, 32. _Buprestidæ_, food for larvæ of _Cerceris bupresticida_, 285. Bushmaster, or surucucu, 112. _See also Lachesis mutus._ _Calamaridæ_, species of _Callophis_ feed only upon, 42. _Callionymus_, 301. “ _belennus_, 301. “ _lacertus_, 301. “ _lyra_, 300-301. “ _vulsus_, 301. _Callophis_, 40. “ feeds only on snakes belonging to _Calamaridæ_, 42. “ _bibronii_, 41.