618 INDEX 



Bacteria, A method of detecting rennet production by 447 



oxidizing sulfur under acid and alkaline conditions. Microorganisms 



concerned in the oxidation of sulfur in the soil, V 609 



, The proportion of viable, in young cultures with especial reference to 



the technique employed in counting 405 



, The sources and characteristics of the, in decomposing salmon 85 



, Studies on cultural requirements of, 1 309 



, Studies on cultural requirements of, II 325 



symbiotic in the tissues of higher organisms, A note on the mor- 

 phology of 471 



— — , thermophilic, Studies on, I. Aerobic thermophilic bacteria from water. 343 

 Bacterial autolysis 551 



- growth on a solid medium, procedure for the direct tracing of, Method 

 for the isolation of bacteria in pure culture from single cells and 537 



, Salt effects in, II. The growth of Bad. coli in relation to H-ion 



concentration 465 



, , III. Salt effects in relation to the lag period and 



velocity of growth 583 



Bacteriological medium, Transparent milk as a 511 



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



bacteriophage, bacteriolytic agent, etc.) 491 



, Observations on the properties of (D'Herelle's phenomenon, bacterio- 

 phage, bacteriolytic agent, etc.) 475 



Bacteriolytic agent, etc. D'Herelle's phenomenon, bacteriophage, observa- 

 tions on the nature of bacteriolysants 491 



Bacteriophage, bacteriolytic agent, etc., D'Herelle's phenomenon. Obser- 

 vations on the nature of bacteriolysants 491 



Baker, H. R. Substitution of brom-thymol-blue for litmus in routine labo- 

 ratory work ; 301 



Beverages, carbonated, Viability of the colon-typhoid group in carbonated 

 water and Ill 



Binocular, A, microscope arranged for the study of colonies of bacteria 121 



Biochemical changes produced by a saprophytic anaerobe. Quantitative 

 determination of some of the 373 



Biology, Studies on the, of lactic acid bacteria: a summarj' of personal 

 investigations 271 



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



Brom-thymol-blue, Substitution of, for litmus Ln routine laboratory work. . 301 



Brown, J. Howard and Howe, Paul E. Transparent milk as a bacteri- 

 ological medium 511 



Burke, Victor. Notes on the Gram stain with description of a new method.. 159 



Bushnell, L. D. Influence of vacuum upon growth of some aerobic spore- 

 bearing bacteria 283 



Bushnell, L. D. A method for the cultivation of anaerobes 277 



Quantit.itive determination of some of the biochemical changes pro- 

 duced by a saprophytic anaerobe 373 



