xx LIST OF ILLUSTRATIONS 



FIG. PAGE 



103. Streptothrix Madura, x 1000 . . . .298 



104. Surface colony of the anthrax bacillus on an agar plate. 



x30 . . . . . . . 302 



105. Anthrax bacilli, arranged in chains, from a twenty-four 



hours' culture on agar at 37 C. x 1000 . . . 303 



106. Stab culture of the anthrax bacillus in peptone-gelatin . 303 



107. Anthrax bacilli containing spores, x 1000 . . . 305 



108. Scraping from spleen of guinea-pig dead of anthrax, x 1000 307 



109. Portion of kidney of a guinea-pig dead of anthrax, x 300 . 309 



110. A large clump of typhoid bacilli in a spleen. x 500 . 320 



111. Typhoid bacilli, from a young culture on agar, showing some 



filamentous forms, x 1000 . . . .321 



112. Typhoid bacilli, from a young culture on agar, showing 



flagella. x 1000 ...... 322 



113. Culture of the typhoid bacillus and of the bacillus coli . 323 



114. Colonies of the typhoid bacillus in a gelatin plate, x 15 . 324 



115. Bacillus coli communis. x 1000 .... 325 



116. Film preparation from diphtheria membrane ; showing 



numerous diphtheria bacilli, x 1000 . . . 354 



117. Section through a diphtheritic membrane in trachea, show- 



ing diphtheria bacilli, x 1000 .... 355 



118. Cultures of the diphtheria bacillus on an agar plate . 357 



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



agar. x 1000 ...... 357 



120. Diphtheria bacilli, from a three days' agar culture. x 1000 358 



121. Involution forms of the diphtheria bacillus, x 1000 . 358 



122. Pseudo-diphtheria bacillus (Hofmann's). x 1000 . . 366 



123. Xerosis bacillus from a young agar culture, x 1000 . 367 



124. Film preparation of discharge from wound in a case of 



tetanus, showing several tetanus bacilli of "drumstick " 

 form. xlOOO . . . . . .373 



125. Tetanus bacilli, showing flagella. x 1000 . . . 374 



126. Spiral composed of numerous twisted flagella of the tetanus 



bacillus, x 1000 . . . . . 375 



127. Tetanus bacilli, some of which possess spores, x 1000 . 375 



128. Stab culture of the tetanus bacillus in glucose gelatin . 376 



129. Film preparation from the affected tissues in a case of 



malignant cedema. x 1000 .... 389 



130. Bacillus of malignant cedema, showing spores. x 1000 . 390 



131. Stab cultures in agar tetanus bacillus, bacillus of malignant 



cedema, and bacillus of quarter-evil . . . 391 



132. Bacillus of quarter-evil, showing spores. x 1000 . . 397 



133. Bacillus serogenes capsulatus .... 398 



134. Cholera spirilla, from a culture on agar of twenty- four hours' 



growth. xlOOO . ' . . . . . 400 



