LIST OF ILLUSTRATIONS xix 



HO. PAGE 



68. Fraenkel's pneumococcus from a pure culture on blood agar. 



xlOOO .... . 202 



69. Stab culture of Friedlander's pneumobacillus . ,- . 203 



70. Friedlander's pneumobacillus, from a young culture on agar. 



xlOOO ....... 203 



71. Capsulated pneumococci in blood taken from the heart of a 



rabbit, x 1000 . . . . . .206 



72. Film preparation of exudation from a case of meningitis, x 1000 213 



73. Pure culture of diplococcus intracellularis . . . 214 



74. Portion of film of gonorrhceal pus. x 1000 . . . 220 



75. Gonococci, from a pure culture on blood agar. x 1000 . 221 



76. Film preparations of pus from soft chancre, showing Ducrey's 



bacillus. x!500 . . . . . .227 



77. Ducrey's bacillus, x 1500 . . . . .228 

 78 and 79. Film preparations from juice of hard chancre showing 



spirochsete pallida. xlOOO .... 230 



80. Section of spleen from a case of congenital syphilis, showing 



spirochsete pallida. x 1000 . . . .231 



81. Spirochaete refringens. x 1000 . . . . 231 



82. Tubercle bacilli, from a pure culture on glycerin agar. x 1000 237 



83. Tubercle bacilli in phthisical sputum, x 1000 . . 238 



84. Cultures of tubercle bacilli on glycerin agar . . . 240 



85. Tubercle bacilli in section of human lung in acute phthisis. 



xlOOO ....... 244 



86. Tubercle bacilli in giant-cells. x 1000 . . 245 



87. Tubercle bacilli in urine, x 1000 . . . .246 



88. Moeller's Timothy-grass bacillus, x 1000 . . .253 



89. Cultures of acid-fast bacilli grown at room temperature . 253 



90. Smegma bacilli. x 1000 . . . . .254 



91. Section through leprous skin, showing the masses of cellular 



granulation tissue in the cutis. x 80 . . 268 



92. Superficial part of leprous skin, x 500 . . . 270 



93. High-power view of portion of leprous nodule showing the 



arrangement of the bacilli within the cells of the granula- 

 tion tissue. xllOO . . . . .271 



94. Glanders bacilli amongst broken-down cells, x 1000 . 277 



95. Glanders bacilli, x 1000 . . . . .278 



96. Actinomycosis of human liver. x 500 . . . 288 



97. Actinomyces in human kidney. x 500 . . . 289 



98. Colonies of actinomyces. x 60 . . . . 290 



99. Cultures of the actinomyces on glycerin agar . . 293 



100. Actinomyces, from a culture on glycerin agar. x 1000 . 294 



101. Shake cultures of actinomyces in glucose agar . . 295 



102. Section of a colony of actinomyces from a culture in blood 



serum, x 1500 295 



