INDEX OF SUBJECTS 



Bacteria, constancy of, 3. 

 natural groups of, 3. 

 systematic relations of, i, 24. 

 variability of, 2. 

 see Variations. 

 Bacterial characters, biochemical, 



60. 



cultural, 53, 58. 

 definiteness of, 28. 

 frequency of, 13, 24, 29. 

 latent, 23. 



morphological, 27, 45. 

 physiological, 27. 

 Bacterial genera, characterization 



of, 14, 30. 

 Bacterial species, characterization 



of, 10, 14, 17, 30, 35, 44. 

 grouping of, 33. 

 Bacteruiium, 32. 

 Bacteriology, systematic, 3. 

 Bacterium Guntheri, 132, 144. 

 Beer, disease fermentations of, 230, 



232. 



Biochemical reactions, see Bac- 

 terial characters, biochem- 

 ical. 



Biometry, see Statistical method. 

 Blood serum, 45, 54. 

 Bovine disease, see Cattle, diseases 



of. 

 Broth, growth in, 44, 54, 55, 196. 



Capsule formation, 52. 



effect of media and age on, 53. 



Capsulated albococci, 202-205. 



Capsulated streptococci, 129-132. 



Carbohydrate media, 61, 74, 102- 

 103, in, 114, 115, 130, 156- 

 159, 169, 182, 195-197, 229. 



Cattle, diseases of, 142, 143, 165, 



. T 73- 

 Cell-division, see Fission. 



Cells, form of, 45. 

 grouping of, 45, 73. 



effect of medium and age, 46. 

 method of recording, 46, 47. 

 size of, 47. 



effect of medium and age, 47, 

 48. 



Cells, size of, method of recording, 



49- 

 Cheese, cocci in, 144, 165, 230, 



232, 233, 235. 

 Chromogenesis, 58, 67-70, 74, 



78-81, 170, 171, 173-176, 

 219, 221-223, 225, 226, 232- 



233, 236-237, 238. 



effect of environment on, 67, 68. 



method of studying, 69. 



variability of, 68. 



Chromogenesis and acid produc- 

 tion. 83. 



gelatin liquefaction, 86. 



habitat, 81. 



nitrate reduction, 84. 



surface growth, 82. 



temperature relations, 85. 

 Classification, decimal system, 4. 



rational 5, 13. 

 Coagulation, see Milk, reactions 



in. 

 Coccaceae, 31. 



characterization of species, 35. 



genera of, 20, 32, 37, 39, 86-89, 



94-98, IOO, 178, 193, 212, 

 227, 228. 



grouping of species, 33-35. 



subfamilies of, 19, 20, 36, 37, 

 76-79, 86-89, 178, 192- 



systematic relationships of, 18, 

 22, 31, 36, 38, 76. 



variability of, 19. 

 Cocci, isolation of cultures, 43. 

 Coccus lactis viscosi, Gruber, 237. 

 Cohnia, 32. 

 Color chart, 69. 

 Committee on standard methods, 



45, 5, 54, 57, 6 3> 64, 7 1 - 



Coniferin, 158, 159. 



Correlation, 14. 

 causes of, 15. 

 significance of, 16. 



Correlation between chromogene- 

 sis and other characters, 

 81-86. 



Cultural characteristics, see Bac- 

 terial characters, cultural. 



Curve of frequency, n, 29. 



