INDEX OF SUBJECTS 



1193 



Weil-Felix reaction, in the diagnosis of 



typhus fever, 945, 946 

 Welch bacillus, 751-756. See also B. 



Welchii 



Welch's capsule stain, 116 

 Welch and Nuttall, method of rabbit in- 

 oculation for the isolation of anaer- 

 obes, 211 

 West tube in taking nasopharyngeal 



cultures, 542 

 Whooping cough, bacillus of, 504-508 



antibody production by, 508 



cultivation of, 506 



epidemiology, 504, 505 



pathogenicity, 507 



morphology of, 505 



staining of, 506 

 Widal reaction, 282 



method of performing, 302 

 Winckel's disease, 633 

 Wolbach's table of disease caused by 



filtrable viruses, 891 

 Woolsorter's disease, 782 

 Wolfhugel counting plate, 195 

 Wohlhynin fever, 946. See also Trench 



fever 



Wood's polychrone stain, 128 

 Wood ticks in the transmission of 



Rocky Mountain Spotted fever, 952 

 Wounds, bacteriological control of, 763- 

 768 



anaerobic bacilli found in, 749-763 



cultural examination, 766 



serological treatment, 768 



smear method, Carrel, 754 



surgical considerations, 767 

 Wright's method of counting bacteria, 



195 



Wright's stain, 127 



Wright 's technique of the opsonic test, 



339 

 vaccine therapy, 341 



dose in staphylococcus infections, 



344 



method of counting bacteria, 343 

 negative phase, 344 

 positive phase, 344 



"X" SUBSTANCES, bacterial poisons, 



237 

 Xerosis bacillus, 584 



YAWS, 870 



"Y" bacillus in bacillary dysentery, 



704, 707 

 Yeasts, 980 



diseases caused by, 984, 985 



in alcoholic fermentation, 981 



in the normal nose, 221 



other yeast-like parasites, 992 

 Yellow fever, 874-884 



etiology, 879-883 

 early claims, 880 

 Noguchi's work, 881-883 



distribution of, 874 



immunity in, 884 



prevention of, 883 



transmission of, 874-878 



ZIEHL-NEILSON stain for the tubercle 

 bacillus, 124 



Zur Nedden's bacillus, 509 



Zymase, enzyme of alcoholic fermenta- 

 tion, 58, 981 



Zymonema Gilchristi, 985 



