INDEX. 



511 



Vibrio berolinensis, 369 ; PI. 53 

 cholera?, 353; PI. 47-51 



demonstration, 371 



in evacuations, 371 



in water, 373 



resistance, 358 



toxins, 360 



varieties related to, 364, 365 



viability, 357 



vibrios not to be confounded 

 with, 375 



virulence, 363 

 danubicus, 369 ; PI. 53 

 Fischeri, 371 

 flavescens, 375 

 flavus, 375 

 hebogenes, 368 

 indicus, 370 

 key to diagnosis, 353 

 lingualis, 353, 376 

 lissabonensis, 368 

 luminosus, 371 

 Metschnikovii, 353, 366; PI. 



51 

 nasalis, 353, 375 

 proteus, 353, 367; Pis. 51, 52 

 romanus, 365 

 rugula, 126 

 sa A -ophiles, 371 

 serpens, 379 



spermatozoides, 375; PI. 56 

 terrigenus, 353, 371 

 tonsillaris, 353 

 tyrogenes, 368 

 Vinylcholin, 72 



Violet pigments, 67 



Virulence, 94 

 reduction, 94 

 restoration, 95 



Water agar, 485 

 bacillus, Kiel, PI. 22 



red, 277 

 bacteria and, 40 

 cholera vibrio in, 373 

 in bacteria, 29 

 Wax in tubercle bacilli, 29 

 Well-water, bacteria and, 40 

 Whey, litmus, 483 

 Wooden tongue, 446 

 Wound diphtheria, 397 



Xanthin in bacteria, 30 

 Xerosis bacillus, 406 

 X-rays, effect on bacteria, 46 



Yellow fever, 256 

 milk, bacillus, 267 

 pigment, 66 



Ziehl-Neelsen staining of tu- 

 bercle bacilli, 480 

 ZiehFs solution, 475 

 Zooglea, 23 

 Zymase, 65 

 Zymogenic bacilli, 306 



