INDEX 



1043 



Wells, microorganisms in, 317 



Whiskey, 631 



White diarrhoea, bacillary, 806 



White lead, production of, 654 



Whooping cough, 825 



Widal test, 714 



Wilt, of cucurbits, 988 



of eggplant, 990 



Irish potato, 990 



sweet corn, 989 



tobacco, 990 



tomato, 990 



Wilt disease of gypsy moth, 935 

 Wine, 603 



acetic bacteria in, 609 



aerobic organisms in, 608 



anaerobic organisms in, 609 



butyric bacteria in, 612 



classification of, 603 



composition of, 604 



control after fermentation, 618 

 before fermentation, 612 

 of fermentation, 615 



defined, 603 



dry, 603 



fermentation, 615 



fining of, 620 



fortified, 603, 604 



lactic bacteria in, 610 



mannitic bacteria in, 611 



as medium for cultivation, 603 



microorganismsjn, 608 



mycodermae in, 608 



and prohibition; 621 



propionic bacteria in, 610 



red, 603 



slime-forming bacteria in, 610 



sparkling, 603 



starter for, 614 



sweet, 603 



white, 603 



yeasts of, 74 

 Wisconsin curd test, 400 

 Wood smoke as preservative, 557 



Wort, 623 



production of, 561 

 Wounds, 792 



X-RAYS, 281 



YAHOURTH, 510 



Yaws, 904 



Yeast, ash elements in, 193 



of beer, 74, 622 



bottom, 62, 73 



of bread, 564 



in canned foods, 528 



cell of, 62 



classification of, 61 



compressed, 559 



culture of, 76 



cytology of, 63 

 . definition of, 61 



differentiation of, 78 



diseases caused by, 775 



distillery, 73 



enzymes, proteolytic, of, 215 



in fermentation, 73 



as food, 563 



on foods, 518 



on grapes, 605 



morphology of, 61 



pseudo-, 75, 77 



thermal death-point, 276 



top, 62, 73 



wild, 77 



of wine, 74 

 Yellow fever, 875 



ZONOCERCUS elegans, 917 

 Zooglcea, 89 

 Zygomycetes, 34 

 Zygorrhynchus vuilleminii, 360 

 Zygosaccharomyces chevalieri, 70 

 Zygospore, 38 



in mucor, 49 



in protozoa, 131 

 Zymase, 207, 208, 214. 



