xx LIST OF ILLUSTRATIONS 



Page 



Bacillus tetani with spores in distended ends 95 



Complete outfit for intraspinal administra- 

 tion of Tetanus Antitoxin 107 



Pneumococcus in peritoneal pus. Stained 

 with f uchsin. Clear spaces indicate 

 capsules 114 



Convenient outfit for administering large 



doses of Antibacterial Sera .... 120 



Streptococcus in peritoneal fluid 124 



Gonococcus in pus cells 133 



Complete outfit for intraspinal administra- 

 tion of Antimeningococcus Serum . 145 



Single linear scratch about % inch long, ex- 

 tending down to the corium but not 

 deep enough to cause bleeding; 

 ready to be inoculated with Vac- 

 cine Virus 185 



Typical vaccination produced by single linear 

 scratch about % inch long, with 

 Glycerinated Vaccine Virus. Ten 

 days after vaccination 188 



Bacillus typhosus with faintly stained fla- 



gella. (Loeffler's method) 203 



Staphylococcus 260 



Bacillus coli communis. (Colon bacillus). 



Twenty-four-hour agar culture . . 267 



Bacillus influenzae 275 



Bacillus bulgaricus 294 



