Dyer, venom antitoxin treatment of yellow fever, 184. Eau de Javel, antidote to venom before absorption, 263. “ “ in treatment of wasp- or bee-stings, 286. Echidnin, chemistry of, 160. _Echinoidea_ (sea-urchins), 273. _Echinoderms_, poisonous species of, 273. _Echis_, 48, 76. “ _carinatus_ (_efa_, viper of the pyramids), 48, 76. “ “ bite from, 347. “ “ dreaded by Egyptians, 77. “ “ venom rapid in action, 49. “ _coloratus_, 77. _Efa_ (_Echis carinatus_), 48, 76. _See also Echis carinatus._ Eggs of bees, venom contained in, 284. “ fowls, artificial intoxication by venom, effect on embryo, 214. “ _Crotalus_ rich in poison, 220. Egypt, laboratory researches in, 149, 150. “ snake-charmers of, 228-229. Egyptians, dread of _Echis carinata_ (_Efa_) shown by, 77. “ “ and pursuit of _Naja haje_ among, 60. Ehrlich, theory of lateral chains, 208, 220. _Elachistodontinæ_, sub-family of _Opisthoglypha_, 3. “ geographical distribution, 4. _Elapechis_, 58. “ _boulengeri_, 59. “ _decosteri_, 59. “ _hessii_, 59. “ _guentheri_, 58. “ _niger_, 58, 59. “ _sundevallii_, 59. _Elapinæ_, sub-family of _Colubridæ_, 30. “ geographical distribution, 5. _Elapognathus_, 97. “ _minor_, 97. _Elaps_, 101, 108. “ _ancoralis_, 108. “ _annellatus_, 103. “ _anomalus_, 103. “ _buckleyi_, 103. “ _corallinus_ (coral snake), 104. _See also_ Coral-snake. “ _decoratus_, 104. “ _dissoleucus_, 106. “ _dumerilii_, 104. “ _elegans_, 103. “ _euryxanthus_ (Sonoran coral-snake), 102. “ _filiformis_, 107. “ _fraseri_, 107. “ _frontalis_, 106. “ _fulvius_ (harlequin or coral-snake), 106. “ _gravenhorstii_, 102. “ _hemprichii_, 104. “ _heterochilus_, 102. “ _heterozonus_, 103. “ _langsdorffii_, 103. “ _lemniscatus_, 107. “ _marcgravii_, 106. “ _mentalis_, 107. “ _mipartitus_, 107. “ _narduccii_, 108. “ _psyches_, 106. “ _spixii_, 106. _Elaps surinamensis_, 102. “ _tschudii_, 104. Electricity passed through solution of venom in form of continuous electrolytic current destroys toxicity, 165. _See also_ High frequency currents. Embryo, anomalies in development consequent on introduction of venom into eggs of fowl, 214. _Enhydrina_, 139. “ venom of, fixation on nervous elements, 186. “ _bengalensis_ (syn. _E. valakadien_), 139. “ _valakadien_ (syn. _E. bengalensis_), 139. “ “ venom of, dose lethal for different animals, 174. _Enhydris_, 138. “ _curtus_, 138. “ “ venom of, dose lethal for rat, 174. _Entomophaga_, 286. Eosin, photodynamic action of, diminishes toxicity of venoms, 167. _Epeira_, 276. Erythrosin, photodynamic action of, diminishes toxicity of venoms, 167. Europe, poisonous snakes inhabiting, 22-29. “ “ geographical distribution of genera (tables), 142. “ (Central). _See_ Alps. “ _Triton cristatus_ and _T. marmoratus_ found in, 313.