CONTENTS. Vli 



CHAPTER IV. 

 The Microbial Toxins 



PAGB 



Pyogenic and pyretogenic properties '. 66 



Anthrax toxin 67 



Tubercular toxin 69 



Diphtheria toxin 71 



Tetanus toxin 76 



Mallein 79 



Typhoid toxin 80 



Cholera toxin 82 



CHAPTER V. 



The Venoms. 



General nature of venoms 85 



Venomous serpents 87 



Nature of serpent-venoms 88 



Natural immunity towards serpent-venoms 90 



Artificial immunity towards serpent- venoms 91 



Venoms of batrachians and saurians 92 



Fish-poisons 95 



Poisons of the hymenoptera 96 



Poisons of scorpions 97 



Poisonous blood and Ferums 98 



Poisonous meats . , 100 



