402 VENOMS 
Vipera raddii, 44. 
»»  Tenardi, 44. 
»  russellii (daboia, or Russell's viper), 45, 46. 
99 », muscular apparatus of head of, 11, 12. 
an >»  poison-gland of, 11, 12. 
Ap », protection against, adopted by natives, 46. 
He » venom of, coagulant action on blood, diminished when heated, 191. 
An 56 a extremely potent, 46. 
5 - 5 dose lethal for rabbit, 175. 
AC ae ingestion causing death, 180. 
LE 
»»  Superciliaris, 69. 
»»  Uursinii, 24, 25, 44. 
Viperide, 5, 43, 66. 
Le bites of, local gangrene resulting from, 177. 
ae characteristics of, 5. 
D geographical distribution, 6. 
a poison-fangs canaliculate, 5. 
ae species of, bite produces grave local disorders, 168. 
SS sub-families of, 6. See also Viperinæ, Crotaline. 
5 venoms of, absorption by digestive tract sets up acute inflammation of gastric 
mucous membrane, 180. 
>> an action on nervous centres weak, 185, 186. 
” 5 comparison of coagulant action on blood of various species, 190. 
», 3 easily destroyed by heat, 161. 
” 5 hemolysing power, weak, 199. 
oO 5 lethal effects on mammals, 171. 
»» op neurotoxin present in those of some species, 249. 
» D non-dialytic, 161. 
») oF produce coagulation of blood, 179, 188, 189. 
” » ,, hemorrhagic injections of peritoneum, 179, 180. 
36 Ee recovery after non-lethal doses, slow, 177. 
” ”» ” » 5, followed by loss of sight, smell, or 
hearing, 178. 
xs be recovery after non-lethal doses complicated by visceral hemorrhages, 
177, 178: , 
5 oF resemblance in action of that of Japanese salamander to, 317. 
” ” ” ” ” Ornithorhynchus to, 324. 
5 richness in hæmorrhagin, 249. 
Viperin, chemistry of, 130. 
Viperine, 43, 66, 101. See also Atheris, Atractaspis, Bitis, Causus, Cerastes, Echis, 
Pseudocerastes, Vipera. 
+ characteristics of, 6, 
Viscera, hemorrhages from, complicating recovery from bites of Viperidæ, 177, 178. 
,,  bhyperæmia of, caused by fatal bite of species of Colubride, 171. 
WALL, chemical constituents of venom, 160. 
Waller, fatal instance of rapid poisoning from bite of Naja haje, 60. 
Walterinnesia, 64. 
