668 



YAWS, 495 

 Yeasts, 460, 9 



analysis of, 466 

 isolation, 465 



of fermentation, 465 

 - pathogenic, 462 



Yellow fever, 546, 373 



INDEX 



ZIEHL - NEELSEN solution, 



100 



Zinc chloride, 641 

 Zoogloea, 10 

 Zygospore, 469 

 Zygote, 516 

 Zymolysis, 34 



JOSEPH D, HOOGEN D, 



BALL ANT YNE AND COMPANY 



TAVISTOCK STREET COVENT GARDEN 

 LONDON 



