LIST OF ILLUSTRATIONS. xv 



FIG. PAGE 



63. Glanders bacilli from a pure culture. x 1000 . . 243 



64. Superficial part of leprous skin, showing the cells of the 



granulation tissue filled with bacilli. x 500 . . 255 



65. High-power view of portion of leprous nodule. x 1 100 . 256 



66. Actinomycosis of human liver. x 500 ' . . . 262 



67. Actinomyces with clubs in human kidney. x 500 . . 264 



68. Cultures of the actinomyces on glycerine agar - . . 268 



69. Actinomyces from a culture on glycerine agar. x 1000 . 269 



70. Surface colony of the anthrax bacillus. x 30 . . 277 



71. Anthrax bacilli arranged in chains. x 1000 . . . 278 



72. Stab culture of the anthrax bacillus ' . . . 278 



73. Anthrax bacilli containing spores. x 1000 . . . 280 



74. Scraping from spleen of guinea-pig dead of anthrax. x 1000 283 



75. Portion of kidney of guinea-pig dead of anthrax. x 30x3 . 285 



76. Large clump of typhoid bacilli in a spleen. x 500 . . 299 



77. Typhoid bacilli from a young culture on agar. x 1000 . 300 



78. Typhoid bacilli from a young culture on agar, showing flagella. 



x 1000 .....;. 302 



79. Stab and stroke cultures of typhoid bacillus and bacillus coli 303 



80. Bacillus coli communis. x 1000 . . . . 305 



81. Film preparation from diphtheria membrane. x 1000 . 331 



82. Section through a diphtheritic membrane in trachea, showing 



diphtheria bacilli in clumps. x 1000 . . . 334 



83. Colonies of the diphtheria bacillus on sloped agar . . 336 



84. Diphtheria bacilli from a twenty-four hours' culture on agar. 



x 1000 . ... . . . . 336 



85. Diphtheria bacilli of larger size than in previous figure. 



xiooo .... . 337 



86. Involution forms of the diphtheria bacillus. x 1000 . 338 



87. Film preparation of discharge from wound in a case of tetanus. 



xiooo . . 353 



88. Tetanus bacilli, some of which possess spores, x 1000 . 354 



89. Stab culture of the tetanus bacillus. (Kitasato) . . 356 



90. Bacillus of malignant oedema. x 1000 . . . 370 



91. Bacillus of quarter-evil, showing spores. xiooo . . 374 



92. Cholera spirilla. x 1000 . . . . . 377 



93. Cholera spirilla stained to show the terminal flagella. 



x looo . . .- . . . . 378 



94. Stab culture of the cholera spirillum . . . . 380 



95. Metchnikoff's spirillum. x 1000 . . . . 400 



96. Stab cultures of Metchnikoff's and of Finkler and Prior's 



spirillum . . . . . . . 401 



