i86 



Arthrosporcs, 22, 25. 



Aseptic treatment of wounds, 87. 



Ash, percentage of in bacteria, 52 ; essential 



amounts of, 53, 54. 

 Asparagin, as source of nitrogen, 55 ; 



chemotactic attraction of, 79. 

 Aspartic acid, 99. 

 Asp&rgillus, parasitism of, 42; patho- 



genicity of species of, 42 ; -- yeast, 1 10, 



176. 



Asporogenous condition, induction of, 28. 

 Attenuation, 27 ; influence of on spore 



formation and virulence, 28. 

 Australia, nitrite bacteria of, 105. 

 Autoclave, use of, 76. 



Bacilleae, 33. 



Bacillus, I ; definition of, 2, 32 ; characters 

 of genus, 33; B. a'cti, in, Fig. 24, 

 action of I on, 113; B. (nidi I act id, 

 in, Fig. 24, shape and properties of, 

 117; B. acidificans longissimus, shape 

 of, 117; B. aerogencs, shape of, 117 

 B. ant /tract's, capsules of, 10, Fig. 7 

 characters and life-history of, 149 

 formation of spores of, 20, Fig. 1 1 

 conditions for--, 23, 150; germina- 

 tion of, 20, Fig. II, 22; growth of 

 in culture media, 55 ; plugging of 

 capillaries by, 159; production of 

 caprionic acid in milk by, 1 18 ; tempera- 

 ture optimum for, 28, minimum and 

 maximum for, 74 ; B. brunneus, colour 

 of, 12 ; B, bttccalis maximits, p. I, 

 Fig. i; granulose reaction of, 139; 

 shape of, 140, Fig. 26; occurrence 

 of in faeces, 141 ; B. Chauveii, 150, 

 pathogenic character of, 112; />'. coli, 

 101, 151, Fig. 28; growth of on different 

 culture media, 55 ; influence of 



acidity of on, 56 ; non-liquefaction of 

 gelatine by, 58 ; production of indol 

 by, 102; B. coli connnunis, 15; fer- 

 mentative properties of, 112; fermenta- 

 tion of carbohydrates by, 102 ; in- 

 fluence of peptone and ammonia on 

 fermentative products of, 115; B. 

 cyaneo-fitscits, pigment of, 13 ; B.cyano- 

 genus, colour of, 12 ; discolouration 

 of milk by, 118; B. diphtherias, 151, 

 Fig. 28; characters of, 150, 151, 

 Fig. 28 ; B. ethacetictis, fermentative 

 activity of, 114; B. fluorescens lique- 

 faciens, chemotactic attraction of, 79, 

 Fig. 18; putrefactive properties of, 

 1 02 ; B. indigogemis, fermentation of 

 indican by, 124 ; B. Kiitzingianus, in, 

 Fig. 24 ; "action of I on, 112; B. lepto- 

 sportis, germination of spore of, 20, 

 Fig. n, 22; B. maligni oedematis, 

 150; B. orthobutylicus, fermentative 

 activity of, 114; properties of, 121; 



B. Pasteurianus, ni, Fig. 24; action 

 of I on, 112; fermentative activity of, 

 113; B. phosphorescens, minimum, 

 maximum, and optimum temperatures 

 for, 74 ; B. prodigiosus, colour of, 12 ; 

 coloration of milk by, 118; percentage 

 composition of, 52 ; production of 

 lactic acid by, 116; B. protcus, 15, 

 102, Fig. 22 ; B. pittrificus coli, 

 occurrence of in intestine, 141 ; putre- 

 factive products of, 102 ; B.pyocyaneus, 

 decomposition of fat by, 108 ; growth 

 of on culture media, 55 ; in sugar 

 solution, 56 ; suppuration due to, 148; 

 B, radicicola of Beyerinck, 92 ; B. 

 snbtilis, 15, Fig. 8 ; cessation of growth 

 of in partial vacuum, 61 ; ciliation of, 

 15; permanence of , 31 ; supposed 

 conversion of anthrax bacilli into, 30; 

 germination of spore of, 20, Fig. 11, 

 22 ; growth of on culture media, 55 ; 

 influence of acidity of on, 56 ; in- 

 volution forms of, 26, 27, Fig. 14; life 

 cycle of, 25, 26, Fig. 13; minimum, 

 optimum, and maximum temperatures 

 for, 74; rapiJity of fission in, 17; 

 resistance of spores of to boiling, 76 ; 

 B.tetani, 151, Fig. 28; characters of, 

 150; obligate anaerobiosis of, 61 ; 

 B. thermophilus, optimum, minimum, 

 and maximum temperatures for, 74 ; 

 />'. tuberculosis, 151, Fig. 28; absence 

 of spores in, 153; characters of, 153; 

 culture of, 152; cellulose in cell-wall 

 of, 9; growth of in fluid media, 58; 

 minimum, maximum, and optimum 

 temperatures for, 74 ; tingibility of, 

 181 ; B. typhi, 151, Fig. 28 ; characters 

 of, 154; ciliation of, 15; growth of 

 in culture media, 55 ; non-liquefaction 

 of gelatine by, 58 ; polar granules of, 

 9; B. typhi murium, use of, 154; 

 B. ureae, 102, Fig. 22 ; B. violncctts, 

 arthrospores of, 23 ; colour of, 12; 

 distribution of pigment in, 13 ; in- 

 fluence of oxygen on pigment formation 

 of, 61 ; B, wrens, distribution of pig- 

 ment in, 12; B. I'iscosus sacchari, 

 nutrition of, 123 ; B, vulgaris, nutritive 

 requirements of, 29 ; putrefactive 

 powers of, 102 ; zoogloea of, 31. 



Bacteria, of mouth and teeth, 140, Fig. 26; 

 diseases of plants induced by, 138 ; 

 non-penetration of plants by, 138. 



Bactericidal substances, 83, 166. 



Bacteriological analysis, methods and 

 technics of, 171 ; of soils, 47. 



Bacterio-purpurin, functions and spectrum 

 of, 68, 69. 



Bacteriosis, 138. 



Bacterium, definition of, 32 ; dimensions 

 of, 4 : B. accticum, 1 10 ; />. acidi 



