INDEX 



189 



centage composition, 52 ; — of acidity 

 and alkalinity of, 55, 56, 131. 



Cupric sulphate, inefficiency of as disin- 

 fectant, 84 ; lethal percentage of, 83. 



Curds, composition of, 119 ; influence of 

 bacteria on, 1 19. 



Cyanin, inhibitory percentage of, 82. 



Cyanogen, as source of carbon, 57. 



Cyanophyceae and bacteria, relationship 

 between, 37. 



Cytoryctesvariolae, association of with cow- 

 pox, 40. 



Czaplewski, on tubercle bacilli, 181. 



Davaine, on anthrax inoculation, 181. 



Dawson, on efficacy of nitragin, 93. 



De Bary, on arthrospores, 22, 170; on 



species in bacteria, 170 ; on systematic 



position of yeast, 178. 

 Denitrifying bacteria, 176. 

 Desiccation, influence of on maximal 



temperatures, 76; resistance of bacteria 



to,- 19, 77, 144, 173; of spores to, 19, 



44, 45, 128. 

 Dextrane, occurrence of in slime bacteria, 



S3- 

 Diastase, hydrolytic action of, 109, 131. 

 Dieudonne', on cholera vibrio, 182. 

 Digestion, relation of bacteria to, 141. 

 Digestive fluids, action of on bacteria, 87. 

 Dissacharides, inversion of, 131. 

 Diseases, relation of bacteria to, 137, chap. 



XV. 

 Disinfection, 84-87, 173. 

 Dissociation, influence of on toxicity, 85, 



174. 

 Distilled water, resistance of spores to, 84. 

 Distribution of bacteria, 44. 

 Diphtheria, cause of, 150; bacilli of, 151, 



152; growth of in milk, 117, 118; 



involution forms of, 27, Fig. 14 ; 



occurrence of Streptococcus pyogenes 



in, 148 ; — toxin, immunity to, 163. 

 Diplococcus pneumoniae, properties of, 149. 

 Division, planes of, 18, 19. 

 Drepanidium ranae, parasitism of, 41. 

 Drosera, bacteria on leaf of, 138. 

 Duclaux, on biological chemistry, 176; on 



milk, 176. 

 Dulcite, fermentation of, 114; nutritive 



value of, 57. 

 Dunbar, on diagnosis of cholera vibrios, 



184. 

 Dysentery, supposed cause of, 40. 

 Dziergowski and Rekowski, on nutrition of 



diphtheria bacilli, 182. 



Ecballium elaterinum, plasmolysis of, 5. 

 Effront, 177 ; hydrofluoric method of, 120. 

 Ehrenberg, on systematic position of 



bacteria, 1. 

 Ehrenfest, on B. coli, 182. 



Ehrlich, on diphtheria serum, 184; on 



immunity, 183. 

 Eidam, on resistance to desiccation, 173. 

 Eleagnus, root tubercles of, 89. 

 Electric currents, germicidal action of, 72 ; 



movements induced by, 73. 

 Elements, essential for bacteria, 54. 

 Emmenthaler cheese, composition of, 119. 

 Endospores, 20, Fig. 11, 21. 

 Engelmann, bacterium method of, 61, 62, 



Fig. 16, 172; on green bacteria, 169; 



on purple bacteria, 68, 172. 

 Ensilage, 120. 

 Enzymes, 176, 178 ; definition of, 108 ; 



action of, no; theory of, 134. 

 Epithelium, impenetrability of by bacteria, 



142, 145. 

 Eriksson, on breeds of Puccinia, 93. 

 Ernst, 180. 



Erysipelas, aetiology of, 148, 180. 

 Erythrite, butyric fermentation of, 121. 

 Erythrobacteria, 66 ; photosynthesis of, 68 ; 



rays effective in, 68, 69. 

 Escherich, on diphtheria, 181 ; on intestinal 



bacteria of infants, 176, 180; on serum 



therapeutics, 184. 

 Ether, action of on ferments, 109; lethal 



percentage of, 83. 

 Ethyl alcohol, fermentation of, 112; pro- 

 duction of by bacteria, 112, 114; by 



yeast, 132. 

 Ethylidene lactic acid, production of, 116. 

 Eucarpous, 36. 



Eurythermic, definition of. 74. 

 Exoascus, yeast of, 130. 



Facultative anaerobes, 61. 



Facultative parasites, 49. 



Faeces, bacteria in, 141. 



Fat, decomposition of by bacteria, 108 ; 



— during ripening of cheese, 119; 

 occurrence of in old cultures, 14 ; per- 

 centage of in bacteria, 52. 



Favus, cause of, 42. 



Fechner, psycho-physical law of, 80. 



Fehleisen, on erysipelas, 180. 



Fermentation, 108 ; literature of, 176, 179 ; 

 biochemical explanation of, 135 ; 

 theories of, 133, 134, 135 ; technical 

 uses of, 123, 124, 125 ; oxidatory, 112 ; 



— organisms, relation of to oxygen, 

 135 ; — products, heat of combustion 

 of, 135, 136. 



Ferments, 108 ; action of, 109 ; organized, 



by-products of, no. 

 Fermi, on non-nitrogenous bacteria, 171. 

 Ferro-bacteria, 69. 

 Fibrin, butyric fermentation of, 121. 

 Finger, G hon and Schlagenhaufer, on biology 



of Gonococcus, 181. 

 Finkler and Prior, on cholera vibrios, 



182. 



