Index 



Winslow and Prescott's method of 



preparing litmus, 239 

 and Willcomb's direct method 

 of enumeration of bacteria in 

 water, 288 

 Wolff-Bisner ophthalmo-tubercu- 



lin reaction, 742 



Wolfhtigel's apparatus for counting 

 colonies of bacteria upon plates, 

 287 

 Wooden apparatus, sterilization of, 



204 



tongue, 803, 811 

 Wounds as avenue of infection for 



tubercle bacillus, 730 

 disinfection of, 211 

 Wright's method of cultivation of 

 micrococcus gonorrhoeae, 434 

 of enumerating bacteria in 



fluid, 289 

 of making anaerobic cultures, 



264, 267 



of staining protozoa, 197 

 Wiirtz's method for detecting colon 

 bacillus in water, 675 



X-RAYS, influence on growth of 

 bacteria, 62, 63 



YAWS, 800 



Y bacillus, 700 



Yeasts, 43, 818 



influence of food on growth of, 60 



of light on growth of, 61 

 Yellow fever, 576 



mosquitoes and, 577 



prophylaxis, 580 

 Yersin's serum, 597 

 Young's method of cultivation of 

 micrococcus gonorrhreae, 433 



fluid, 179 

 Ziehl's method of staining Bacillus 



typhosus, 634 

 tubercle bacillus, 716 

 Zieler's method of staining, 186 

 Zinsser's method of making anae- 



robic cultures, 264 

 Zopf's bacterium pneumoniae, 507 

 Zur Nedden's bacillus, 450 

 Zygote, 531 



