On the whole, the evidence collected in the last two cases is as confused as it is incomplete, and we can scarcely say how much we regret the obstinacy of these unfortunate victims in refusing to submit to our treatment, for the serum would undoubtedly have produced its maximum effect in them, since it would have been possible to make use of it in good time. These disastrous occurrences, however, will not cure natives of their exclusive reliance upon empirical practices; and as regards the inhabitants of the Tamil country, that is to say, Southern India, it may be foreseen that for a long time to come they will continue to remain refractory to the serotherapic treatment, submission to which the English have had less difficulty in securing from the natives of Bengal, whose intellectual development undoubtedly stands on a higher plane. INDEX. d’Abbadie, M., on inoculation, 238. _Acalyptophis_, 133. _Acanthophis_, 96. “ _antarcticus_ (death adder), 96. “ “ “ “ bite dangerous, 100. _Acanthopterygii_, 290, 301, 304. _Acanthurus_, 301. “ _luridus_, 301. Adder, 25, 26. _See also Vipera berus._ Africa, poisonous snakes in, 57-81. “ “ “ geographical distribution of genera (tables), 143, 144. “ (Central), witch doctors of, snake-bite remedies, 237. “ (East), Vatuas’ method of inoculation, 239. Agglutinins of venoms, 202. _Aipysurus_, 140. “ _annulatus_, 140. “ _australis_, 140. “ _lævis_, 140. “ _eydouxii_, 140. Albuminoid of snake-venom produces hæmorrhages, 162. Albumins of venom devoid of toxic power, 164. Albumose of snake-venom attacks nerve-cell of respiratory centres, 162. Albumoses of venoms of _Colubridæ_, 162. “ “ “ method of separation, 162. “ _See also_ Proto-albumoses, Hetero-albumoses. Alcatifa, extraction of venom from, for inoculation, 239. Alcock, researches of, on glands of snakes, 147. Alexins, 198, 209. “ characteristics of, 207. “ fixation of, 210, 211. “ of normal serum, fixation by cobra-venom, 211. “ neutralisation of, 212. Alkaloids in venom, 160. Alps, and mountains of Central Europe, _Salamandra atra_ found in, 313. Amboceptors, 198, 210. “ fixation of, 208, 220. America, snakes in, geographical distribution of genera of (table), 146. “ venomous snakes in, 100-131. America, (Central), _Batrachus tau_ found on shores of, 302. “ (North), musical toad found in, 318. “ (South), witch doctors of, snake-bite remedies, 237. “ (Tropical and Sub-tropical), _Latrodectus mactans_ found in, 275. Ammonia, injection of, only temporary antidote against snake-venom, 261. _Ancistrodon_, 49, 109, 110. “ venom of, precipitation of anticoagulant substance in, 195. “ _acutus_, 49. “ _bilineatus_, 111. “ _blomhoffii_, 50. “ _contortrix_, 111. “ _himalayanus_, 50. “ _hypnale_, 51. “ _intermedius_, 50. “ _piscivorus_, 110. “ _rhodostoma_, 51.