XX11 LIST OF ILLUSTRATIONS. 



FIG. - PAGE 



69. Colonies on Nutrient Gelatine, x 60 . . . . .190 



70. Colonies on Nutrient Agar-agar, x 60 . . . .191 



71. Colony of Bacillus anthracis, x 60 . . -. . .191 



72. Bacterium of Rabbit Septicaemia . . . . .192 



73. Streptococcus of Progressive Tissue Necrosis in Mice . . 206 



74. Micrococcus of Pyaemia in Rabbits ; Vessel from the Cortex of the 



Kidney, x 700 . . . . . . .217 



75. Ascococcus Billrothii (after Cohn) ..... 222 



76. Bacterium Pneumoniae Crouposae. from Pleural Cavity of a Mouse, 



x 1500 (after Zopf) ...... 226 



77. Bacterium Neapolitanum, x 700 (after Emmerich) . . . 229 



78. Bacteria of Rhinoscleroma, x 1400 (after Cornil) . . . 229 



79. Bacterium of Chicken Cholera ; Blood of Inoculated Hen, x 1200 . 233 



80. Bacterium of Chicken Cholera, from Muscle Juice of Inoculated Hen, 



* 2500 . 233 



81. Bacterium of Rabbit Septicaemia ; Blood of Sparrow, x 700 (after 



Koch) ........ 235 



82. Bacterium Indicum ; Colonies on Nutrient Agar-agar, x 60 . . 242 



83. Bacterium Zopfii ; Successive Changes in the same Thread, x 740 . 245 



84. Cover-glass Preparation of the Edge of a Drop of Meat Infusion, 



x 600 (after Koch) . . . . . .251 



85. Colonies of Comma Bacilli on Nutrient Gelatine, natural size (after 



Koch) . . . . . . . . 251 



86. Colonies of Koch's Comma Bacilli, x 60 . . . 252 



87. Cover-glass Preparation from the Contents of a Cholera Intestine, 



x 600 (after Koch) ...... 252 



88. Cover-glass Preparation of Cholera Dejecta on Damp Linen (two 



days old), x 600 (after Koch) . . . . .252 



89. Section of the Mucous Membrane of a Cholera Intestine, x 600 



(after Koch) ....... 253 



90. Pure Cultivation of Finkler's Bacillus, twenty-four hours old . . 254 



91. ,, ,, two days old . . . 254 



92. ,, Koch's Cholera Bacillus, twenty-four hours old . 254 



93. ,, ,, ,, two days old . . 254 



94. Comma-shaped Organisms with other Bacteria in Sewage-con- 



taminated water, x 1200 . . . . . .256 



95. Pure Cultivation of Spirillum Finkleri in twenty-four hours . . 258 



96. ,, ,, ,, thirty-six hours . . 258 



97. Spirillum sputigenum, x I2OO ...... 259 



98. Spirillum tyrogenum, x 1200 ...... 260 



99. Spirillum pliccOik (Marsh Spirochaete), x 1200 . . .261 



