INDEX 



213 



ULTRA-VIOLET 



graphy, 80 

 Uracil, 89, 117 

 Urea, 84 



spectrophoto- 



Urease, 



171 



Uric acid oxidase, 43 

 Urocanic acid, 163 



VACCINE, 197 



Valine, 97, 166 



Vanadium, 83 



Viable cells, 75 



Vibration, 30 



Vinegar vats, 149 



Virulence, 188-9 



Virus, 10 



"Viscous fermentation," 119 



Vitamin B^, 115 



Vitamin C synthesis, 150 



Vitamins, bacterial, 100 



Voges-Proskauer test, 22, 136-7 



WASHED suspension, 28, 29 

 Wood-Werkman scheme, 135 

 Wound infection, 167, 189-95 



X-RAY mutants, 59, 61, 95, 96 

 Xylose, 19 



YEAST, 59, 69 



— amino-acid synthesis, 70 



— carboxylase, 53, 128 



— extracts, 35, 100, 113 



— fermentation, 54, 114-17, 140 



— oxidation mechanisms, 38-48 



— size, 10 



ZINC, 34, 83, 165 



Zymohexase, 125, 126, 129 



