192 



INDEX 



Lehmann and Neumann, 169 ; on Bacterium 

 and Bacillus, 35 ; on species of bac- 

 teria, 171 ; on fermentation of dough, 

 178. 



Leichman, on ' mucilaginous ' fermentation, 

 177. 



Leipzig, nitrogen discharged by sewers of, 

 103. 



Leprosy, germ of, 153. 



Leptomitus, character of, 41. 



Leptothrix, deposition of iron in sheaths 

 of, 69, 70 ; occurrence of in hot springs, 

 75; L. buccalis, 139; L. innominata, 

 139 ; L. ockracea, 69. 



Lethal coefficients, 82. 



Leucin, 98, 99 ; in cheese, 119 ; putrefactive 

 decomposition of, 100 ; chemotaxis of, 



173- 



Leucocytes, ingestion of bacteria by, 161, 

 Fig. 29. 



Leucocytosis, 161 ; literature of, 173. 



Leuconostoc, arthrospores of, 23 ; secretion 

 of mucilage by, 53 ; L. mesenteroides, 

 capsules of, 1 o,Fig. 7 ; formation of chains 

 by, 19; growth of in beet-juice, 124. 



Leuwenhoek, discovery of bacteria by, I ; 

 works of, 169. 



Lewkowitsch, on production of amygdalic 

 acid, 176. 



Lichen fungi, parasitism of, 93, Fig. 20. 



Liesenberg and Zopf, on L. mesenteroides, 

 178. 



Life, origin of, 50; primitive character of, 51. 



Light, influence of on erythrobacteria and 

 on pigment formation, 70 ; — on viru- 

 lence of anthrax bacilli, 28 ; deleterious 

 rays of, 71 ; literature of, 172 ; produc- 

 tion of by bacteria, 63 ; influence of on 

 spore-formation by, 72. 



Lindner, on technics of fermentation, 178. 



Lock-jaw, cause of, 150. 



Locomotion, organs and rapidity of in 

 bacteria, 14. 



LSffler, 2; on cilia of bacteria, 170; — 

 method of staining, 14 ; on diphtheria, 

 81, 82 ; on diseases of mice, 155, 182 ; 

 on history of bacteria, 169; on micro- 

 organisms of water, 171. 



Loffler and Abel, on typhoid immunization, 

 182. 



Lophotricha, 1 5 ; taxonomic importance of, 



3 1 - 

 Liibbert, biology of bacteria, 180. 



Luciferin, 64. 



Ludwig, on phosphorescent bacteria, 172. 



Lupinus, percentage of N in, 89 ; root- 

 tubercle of, 90; L. alius, bacteroids 

 of, 27, Fig. 14 ; 90, Fig. 19. 



Lysines, 168, 184. 



Magnesium carbonate, action of nitrite 

 bacteria on, 165. 



Malarial fever, microbe of, 40. 



Maltase, properties of, 131. 



Mammalia, bacterial diseases of, 138, 139. 



Mangin, 179. 



Mannite, fermentation of, 114; nutritive 

 value of, 57 ; production of by bacteria, 

 123. 



Marine bacteria, 63, 64, 65. 



Massart and Bordet, on chemotaxis of 

 leucocytes, 173. 



Mastigophora, parasitism of, 39. 



Mayers, on fermentation, 178. 



Maze - , 169 ; on fixation of N, 92, 174 . 



Melanin, occurrence of in malaria, 40. 



Menge and Kronig, on bacteria of vagina, 

 180. 



Mercuric chloride, inhibitory and poisonous 

 percentages of, 82, 83. 



Merismopoedia, 37. 



Messea, 170. 



Metatrophic bacteria, 54, 55 ; — fungi, 35 ; 

 definition of, 48, 49. 



Methane, 100; — bacteria, 123. 



Methylmercaptan, 100. 



Methyl violet, as a disinfectant, 86. 



Metschnikoff, on immunity, 183 ; on phago- 

 cytosis, 161, 183. 



Miasma, 142. 



Mice, anthrax in, 150. 



Micrococcus, 33 ; M.agilis, 12 ; movement 

 of, 14 ; M. gonorrhoeae, 143, Fig. 27 ; 

 151, Fig. 28; characters of, 148 ; forms 

 of, 149. M. pyogenes, 148, 151, 

 Fig. 28 ; M. tetragenus, 33 ; mode of 

 division in, 19, Fig. 10; M.ureae, 102, 

 Fig. 22 ; decomposition of urea by, 183. 



Migula, on Bacterium and Bacillus, 32 ; 

 on classification of bacteria, 171. 



Milk, bacteria in, 117, 118; changes in- 

 duced by, 118 ; ropiness of, 118, 123 ; 

 butyric bacteria in, 122 ; — sugar, in 

 curds, 119. 



Miller, on bacteria of mouth, 180. 



Mimoseae, root- tubercles of, 91. 



Miquel, on bacteriological analysis of air, 

 171 ; on A thermophilus, 173 ; on urea 

 ferments, 175, 179. 



Molisch, on iron in plants, 172. 



Moller, 172. 



Monas, monotrichous character of, 38. 



Monilia Candida, 39. 



Monosaccharides, fermentability of, 131. 



Monotricha, 15. 



Monotrophism, 29, 49. 



Morphology of bacteria, p. 1 seq., Chap. I. 



Mosquitoes, relation of to malaria, 40. 



Mould fungi, fixation of N by, 97 ; organic 

 disintegration by, 136. 



Mouth, bacteria of, 139, 180. 



Movements of bacteria, 14, 16; influence 

 of plasmolysis on, 9 ; taxonomic value 

 of, 31. 



