CONTENTS. 343 



The Pit Vipers — family Crofalidre — Continued. Page. 

 The Green Rattlesnake — Crotalus lepidun — Coutiuned. 



Description 452 



Variation 453 



Geographical d istribu tion 453 



Habits 453 



The White Rattlesnake— t'/o^(/MS Mitchellii 454 



Synonymy 454 



Description 454 



Variation 455 



Geographical distribution 456 



Habits 456 



The Red Rattlesnake — Crotalus Mitchellii pyrrhus 456 



Synonymy 456 



Figures 456 



Description 456 



Geographical distribution 457 



Habits 457 



The poison of the poisonous snakes 457 



H istorical 457 



Methods of investigation 458 



Methods of obtaining poison 458 



Physical characteristics 459 



Chemical characteristics 460 



Acids ; 460 



Alkaloids 460 



Proteids - . . 461 



Recent investigations and discoveries 461 



Mitchell and Reichert's researches 461 



Wolfenden's results 463 



Martin and Smith's studies 463 



Feoktistow's investigations 464 



Kaufmann's studies of the viper venom 465 



Kaufmann on the action of chromic acid 466 



Calmette's experiments 467 



The search for antidotes 468 



Alcohol 469 



Ammonia 469 



Strychnine 469 



Physiological action 469 



Historical 470 



Mueller's discovery 470 



Opposition to Mueller's treatment 470 



Mueller's reply 471 



The strychnine treatment in India 473 



The search for a physiological antidote goes on 473 



Yarrow's investigations and experiments 473 



Jaborandi 473 



Strophanthus 474 



The elimination of the poison by the system 474 



Treatment -175 



A rational treatment .' 175 



Instill ments 477 



Kanlmanu's directions for injecting chromic acid 477 



Preventive inoculation -178 



Sewall's experiments ,....,..,.,.„. , 47S 



