“ of _Proteroglypha_ grooved, 4, “ _Viperidæ_ canaliculate, 5. Poison-gland of Hymenoptera, 281, 282. Poison-gland of non-venomous snakes, 217. “ venomous snakes, 10, 11, 12, 13. _Polistes_, 285. _Pompilus_, 285. Pondicherry, collection of venom at, 156-158. “ Hospital, collection of venom, method, 362. “ public notice in, _re_ capture of poisonous snakes, 360. Prairie rattle-snake, 120. _See also Sistrurus catenatus._ Pravaz syringe, injection of serum with, 263. Precipitins of venoms, 202. _Prionurus_, 301. Pröscher on extraction of phrynolysin from skins of toads, 320. Proteids, extraction from snake-venom, 163. Proteolytic action of venoms, 204. “ “ “ extent and limitations, 205. _Proteroglypha_ (group of _Colubridæ_), 4. “ bite rapidly produces general intoxication, 168. “ poison-fangs of, grooved, 4. “ sub-families of, 4. _See also Hydrophiinæ_; _Elapinæ_. Proto-albumoses, active principle of snake-venom, 164. “ separation from snake-venom, 162, 163. _Pseudechis_, 87. “ venom of, experiments on, 162. “ “ ingestion by rats harmless, 181. “ _australis_, 88. “ _cupreus_, 88. “ _darwiniensis_, 88. “ _ferox_, 88. “ _microlepidotus_, 88. “ _papuanus_, 88. “ _porphyriacus_ (black snake), 88. “ “ “ “ bite dangerous, 100. “ “ “ “ secretion of, 149. “ _scutellatus_, 88. _Pseudelaps_, 84. “ _diadema_, 85. “ _harriettæ_, So. “ _krefftii_, 85. “ _muelleri_, 84. “ _squamulosus_, 84. “ _sutherlandi_, 86. “ _warro_, 86. _Pseudocerastes persicus_, 47. Psylli, Egyptian charmers and healers, 228-229. “ Roman charmers and healers, 228. “ “ “ “ “ Lucan on, 240. _Pterois_, 293, 295-296. Puff adder, 69. _See also Bitis arietans._ Putrefaction, rapid, following death from snake-bite, 211, 212. Pyramids, viper of (_Echis carinatus_), 76. Queensland, mortality from snake-bite slight in, 100. Rabbit, experiments on, demonstrating neutralisation of venom by antitoxin, 255. “ minimal doses of various venoms lethal for, 173, 174, 175. “ vaccination against cobra-venom, 243. _Rascasse_, 296. Rat, P., on common viper’s bite, 358. “ ingestion of venom of _Pseudechis_ harmless to, 181. “ minimal doses of various venoms lethal for, 174. Rat-serum, bacteriolytic action of venom not comparable to, 208. Rattle-snake, common, 125. _See also Crotalus durissus._ “ dog-faced, 124. _See also Crotalus terrificus._ “ ground, 120. _See also Sistrurus miliarius._ “ horned, 129. _See also Crotalus cerastes._ “ Pacific, or mottled, 124. _See also Crotalus confluentus._ “ prairie, 120. _See also Sistrurus catenatus._ “ Texas, 124. _See also Crotalus scutulatus._ “ venom, vaccination of pigeons against, 241. Red Sea, _Naseus_ found in, 301. Reichert on chemical constituents of venom, 160. Renaux, P., on bites from _Crotalus horridus_, 355.