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. innominate, 



139 ; L. ochracea, 69. 

 Lethal coefficients, 82. 

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



decomposition of, ico ; chemotaxis of, 



173' 



Leucocytes, ingestion of bacteria by, 161, 



Fig. 29. 



Leucocytosis, 161 ; literature of, 173. 



Leiiconostoc, arthrospores of, 23 ; secretion 

 of mucilage by, 53 ; L. mesenteroides, 

 capsulesof,io,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. 



Loffler, 2; on cilia of bacteria, 170; 



method of staining, 14 ; on diphtheria, 

 8l, 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, 15; taxonomic importance of, 



31- 

 Liibbert, biology of bacteria, io. 



Luciferin, 64. 



Ludwig, on phosphorescent bacteria, 172. 



Lupinus, percentage of N in, 89 ; root- 

 tubercle of, 90 ; L. albus, 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. 



M assart 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. 



Mcngc and Kronig, on bacteria of vagina, 

 1 80. 



Mercuric chloride, inhibitory and poisonous 

 percentages of, 82, 83. 



Merismopoedzci) 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. gonorrhoeas, 143, Fig. 27 ; 

 1 5 1, 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 B. thermophilus, 173 ; on urea 

 ferments, 175, 179. 



Molisch, on iron in plants, 172. 



M oiler, 172. 



Manas, monotrichous character of, 38. 



Monilia Candida, 39. 



Monosaccharides, fermentability of, 131. 



Monotricha, 15. 



Monotrophism, 29, 49. 



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



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. 



