622 INDEX 



Microscope, A binocular, arranged for the study of colonies of bacteria. . . . 121 



Milk, Transparent, as a bacteriological medium 511 



, The use of domestic methylene blue in staining, by the Breed method.. 307 



Morphology, A note on the, of bacteria symbiotic in the tissues of higher 



organisms 471 



Morrison, Lethe E. and Tanner, Fred W. Studies on thermophilic bacteria. 



I. Aerobic thermophilic bacteria from water 343 



Mudge, Courtland S. and Ayers, S. Henry. The relation of vitamines to 



the growth of a streptococcus . . . 449 



Mueller, J. Howard. Studies on cultural requirements of bacteria, 1 309 



Studies on cultural requirements of bacteria, II 325 



Nature of bacteriolysants (D'Herelle's phenomenon, bacteriophage, bac- 

 teriolytic agent, etc.) 491 



Nitrates, The use of agar slants in detecting ammonia production and its 

 relation to the reduction of 515 



Note, A, on the morphology of bacteria symbiotic in the tissues of higher 



organisms 471 



Notes on the Gram stain with description of a new method 159 



Observations on the nature of bacteriolysants (D'Herelle's phenomenon, 

 bacteriophage, bacteriolytic agent, etc.) 491 



on the properties of bacteriolysants (D'Herelle's phenomenon, bac- 

 teriophage, bacteriolytic agent, etc.) 475 



0rskov, J. Method for the isolation of bacteria in pure culture from single 

 cells and procedure for the direct tracing of bacterial growth on a solid 

 medium 537 



Our society 149 



Oxidation of sulfur in the soil. Microorganisms concerned in the. I. In- 

 troductory 231 



. . II. Thiobacillus Ihio- 



oxidans, a new sulfur-oxidizing organism isolated from the soil 239 



■ — • . . IV. A solid medium 



for the isolation and cultivation of Thiobacillus Ihiooxidans 605 



■ — • — ■ — ■ — . . V. Bacteria oxidizing 



sulfur under acid and alkaline conditions 609 



Pathogenic anaerobes. Studies in, V. Certain genera of the clostridiaceae. . 1 

 Peterson, W. H. and Fred, E. B. The production of pink sauerkraut by 



yeasts 257 



Pink sauerkraut, The production of, by yeasts 257 



Production, The, of pink sauerkraut by yeasts 257 



Properties of bacteriolysants. Observations on the (D'Herelle's phenomenon, 



bacteriophage, bacteriolytic agent, etc.) 475 



Proportion, The, of viable bacteria in young cultures with especial reference 



to the technique employed in counting 405 



Pure culture from single cells. Method for the isolation of bacteria in, and 



procedure for the direct tracing of bacterial growth on a solid medium. 537 

 study. Methods of. Report of committee on bacteriological technic 519 



