858 



Index of Subjects 



Yellow fever, 574 



Bacillus icteroides and, 576 



historical study, 574 



mosquitoes and, 575 



prophylaxis, 577 



rules for prevention, 576 

 Young's method of cultivating Micro- 

 coccus gonorrhoese, 412 



Zenker's fluid, 152 

 Ziehl's method of staining Bacillus 

 typhosus, 631 



Ziehl's method of staining tubercle 



bacillus, 704 

 Zieler's method of staining, 158 

 Zinsser's method of making anaerobic 



cultures, 219 

 Zinsser, Hopkins and Gilvert's method 



of cultivating Treponema pallidum, 

 768 

 Zur Nedden's bacillus, 427 

 Zygote, SOI 

 Zymogens, 60 

 Zymophore group, 120 



