﻿1875.] 
  

  

  Action 
  of 
  the 
  Crotalus-poison, 
  fyc. 
  

  

  267 
  

  

  these 
  two 
  cases, 
  except 
  in 
  the 
  energy 
  with 
  which 
  the 
  cobra 
  exceeded 
  the 
  

   Crotalus. 
  

  

  Crotalus. 
  

  

  Twitchings 
  ; 
  restless 
  ; 
  squeaks 
  ; 
  

   sluggish 
  3 
  ataxy 
  ; 
  paralysis. 
  

   Hurried 
  respiration. 
  Peritoni- 
  

   tis. 
  Convulsions. 
  Death 
  in 
  

   2 
  hours 
  3 
  minutes. 
  Coagulated 
  

   blood. 
  Ecchymosis 
  and 
  extra- 
  

   vasation 
  of 
  serous 
  effusion 
  well 
  

   marked. 
  Cord 
  paralyzed. 
  Mus- 
  

   cles 
  retain 
  irritability. 
  

  

  Cobra. 
  

  

  Twitchings 
  ; 
  excitement 
  ; 
  squeaks 
  ; 
  

   sluggish 
  ; 
  ataxy 
  ; 
  weakness 
  ; 
  

   paralysis. 
  Convulsions. 
  Death 
  

   in 
  20 
  minutes. 
  Spinal 
  cord 
  and 
  

   nerves 
  paralyzed. 
  Muscles 
  irri- 
  

   table. 
  Heart 
  distended. 
  Blood 
  

   congested. 
  Ecchymosis. 
  Con- 
  

   gestion 
  less 
  than 
  in 
  Crotalus. 
  

  

  Experiment 
  V. 
  

  

  June 
  lOtfi. 
  — 
  A 
  grain 
  of 
  Crotalus-poison 
  diluted 
  with 
  water 
  was 
  

   injected 
  into 
  the 
  peritoneum 
  of 
  a 
  full-grown 
  guineapig 
  at 
  2.40 
  p.m. 
  

   Twitchings 
  began 
  almost 
  immediately. 
  

  

  3.3. 
  Restless 
  ; 
  startings 
  ; 
  staggers 
  on 
  hind 
  legs. 
  

  

  3.20. 
  Yery 
  weak, 
  especially 
  in 
  hind 
  quarters. 
  General 
  paralysis 
  

   setting 
  in. 
  Abdomen 
  distended 
  and 
  very 
  tender. 
  

  

  3.30. 
  In 
  convulsions. 
  Still 
  feels 
  when 
  the 
  abdomen 
  is 
  touched. 
  

   3.37. 
  Paralyzed 
  ; 
  but 
  feels 
  the 
  touch. 
  Beflex 
  well 
  marked. 
  

   3.45. 
  Apparently 
  dead 
  in 
  65 
  minutes. 
  

  

  3.48. 
  Cavities 
  opened. 
  Auricles 
  flickering. 
  Blood 
  from 
  heart 
  and 
  

   great 
  vessels 
  coagulated 
  firmly. 
  Abdominal 
  cavity 
  and 
  areolar 
  tissue 
  and 
  

   subperitoneal 
  tissue 
  infiltrated 
  with 
  bloody 
  serum. 
  Much 
  ecchymosis 
  of 
  

   peritoneum 
  and 
  intestines, 
  but 
  not 
  of 
  lungs. 
  Cord 
  and 
  nerves 
  paralyzed. 
  

   Muscles 
  contract 
  vigorously 
  to 
  induced 
  current. 
  

  

  Action 
  of 
  Crotalus-jjoi&m 
  on 
  Rabbit. 
  

   Experiment 
  VI. 
  

  

  I 
  of 
  a 
  grain 
  (-015 
  gramme) 
  of 
  the 
  same 
  Crotalus-poison, 
  dissolved 
  in 
  

   1 
  cub. 
  centim. 
  of 
  water. 
  

  

  The 
  jugular 
  vein 
  of 
  a 
  large 
  white 
  rabbit 
  was 
  exposed, 
  and 
  the 
  above 
  

   solution 
  was 
  injected 
  into 
  it 
  at 
  1.50 
  p.m. 
  

  

  At 
  1.51 
  violent 
  convulsions, 
  with 
  opisthotonos. 
  

  

  At 
  1.53 
  apparently 
  quite 
  dead. 
  Artificial 
  respiration 
  commenced 
  im- 
  

   mediately. 
  Heart 
  acting 
  still, 
  though 
  feebly 
  and 
  with 
  irregular 
  flickering 
  

   contractions. 
  Spinal 
  cord 
  exposed. 
  Electrodes 
  applied 
  ; 
  no 
  reaction. 
  

  

  2.12. 
  Heart 
  still 
  contracting 
  feebly. 
  

  

  2.15. 
  Eaint 
  contractions 
  of 
  heart 
  still 
  observable. 
  Ventricles 
  punctured, 
  

   and 
  blood 
  withdrawn. 
  Peristaltic 
  action 
  has 
  ceased. 
  

  

  2.20. 
  Eeeble 
  cardiac 
  movements 
  continue. 
  

  

  2.21. 
  Heart 
  has 
  now 
  ceased. 
  Muscles 
  react 
  to 
  direct 
  current. 
  Death 
  

  

  t 
  2 
  

  

  