INDEX 731 



Milk, The advantages of a carbohydrate medium in the routine bacterial 



examination of 481 



Miscellaneous cultures 518 



Modification of the hygienic laboratory method for the production of tetanus 



toxin, A 333 



Murray, T. J. The oxygen requirements of biological soil processes 597 



New culture medivun for the tubercle bacillus, A 411 



ice sampler, A 623 



species of alcohol forming bacterium isolated from the interior of stalks 



of sugar cane infested with the cane-borer Diatraea saccharalis, A 235 



Nitrogen, Further studies on bacterial nutrition: the utilization of proteid 



and non-proteid 15 



Nomenclature and classification of bacteria, Studies in the. I. The prob- 

 lem of bacterial nomenclature 591 



Note on the preparation of agar agar culture media, A 547 



Number of colonies allowable on satisfactory agar plates, The 321 



Observations sur I'influence chimique des milieux de culture sur le deve- 

 loppement et la production de I'indol par les coli-bacilles et par les 



bacilles typhiques 627 



Obst, Maud Mason. Bile compared with lactose bouillon for determining 



the presence of B. coli in water 73 



Owen, Wm. L. A new species of alcohol forming bacterium isolated from 

 the interior of stalks of sugar cane infested with the cane-borer Diatraea 



saccharalis 235 



Oxygen requirements of biological soil processes. The 597 



Pedagogics of bacteriology. The 5 



Pettibone, Dorothy F., Bogart, Franklin B., and Clark, Paul F. The bac- 

 teriology of the bubble fountain 471 



Possible function of actinomycetes in soil, A 197 



Practical method for the identification of guinea-pigs under treatment, A. . 541 



observations on the titration and adjustment of culture media 209 



Preliminary note on the classification of some lactose fermenting bacteria. . 619 



report on synthetic media 135 



Preparation of culture media from whole blood, The 615 



Protozoa, Studies on soil, and their relation to the bacterial flora. . . .1, 35, II, 165 



Rapid and simple indol test, A 535 



Relation of protozoa to certain groups of soil bacteria. The 423 



Rettger, Leo F., and Berman, Nathan. Bacterial nutrition: a brief note on 



the production of erepsin (peptolytic enzjrme) by bacteria 537 



, Berman, Nathan, and Sturges, William S. Further studies on bacterial 



nutrition : the utilization of proteid and non-proteid nitrogen 15 



Rice, J. L., and Laubach, C. A. Spore-bearing bacteria in soil 513 



, Ford, W. W., and Laubach, C. A. Studies on aerobic spore-forming 



non-pathogenic bacteria 493 



Roos, C. G. A. A culture medium for maintaining stock cultures of the 



meningococcus . 



67 



Sampler, A new ice 623 



Sedgwick, W. T. The genesis of a new science — bacteriology 1 



