582 INDEX 



Studies on Azotobacter Chroococcum Beij 331 



Study, A, of the variations in hydrogen-ion concentration of broth media. . 143 

 Suggestions concerning a rational basis for the classification of the anaerobic 



bacteria. Studies in pathogenic anaerobes IV 521 



Swiss cheese, The cause of eyes and characteristic flavor in Emmental or. . . 379 



Tetanus toxin, The effect of pepton upon the production of 407 



Thj0tta, Th. Toxins of Bad. dysenteriae, Group III 501 



Titration and the buffer index of bacteriological media, Hydrogen-ions,.... 555 

 Toxin, The nature of. The antigens of C orynehacterium dlphtheriae and 



Bacillus megatherium and their relation to toxin 103 



Toxins of Bact. dysenteriae, Group III 501 



Tryptophane solution, Note on the indol test in 85 



Typhoid bacilli. Variations in 275 



Variations, A study of the, in hydrogen-ion concentration of broth media 143 

 in typhoid bacilli 275 



Warden, C. C, Connell, J. T., and Holly, L. E. The nature of toxin. The 

 antigens of C orynehacterium diphtheriae and Bacillus megatherium and 



their relation to toxin 103 



Wilcox, Harriet Leslie. The effect of pepton upon the production of tetanus 



toxin 407 



William Thompson Sedgwick, 1855-1921 255 



Winslow, C.-E. A. The importance of preserving the original types of newly 



described species of bacteria 133 



William Thompson Sedgwick, 1855-1921 255 



W^olf, Frederick A., and Shunk, I. V. Solid culture media with a wide range 

 of hydrogen or hydroxyl ion concentration 325 



