LIST OF ILLUSTRATIONS. 



XIX 



85. Portion of film of gonorrhoeal pus. X 1000 



86. Gonococci, from a pure culture on blood agar, x 100 



87. Tubercle bacilli, from a pure culture on glycerin agar. 



88. Tubercle bacilli in phthisical sputum, x 1000 



89. Cultures of tubercle bacilli on glycerin agar 



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



91. Tubercle bacilli in giant-cells. X 1000 . 



92. Tubercle bacilli in urine. X 1000 . 



93. Moeller's Timothy-grass bacillus, x 1000 



94. Cultures of acid-fast bacilli grown at room temperature 



95. Smegma bacilli. X 1000 ... . . 



96. Section through leprous skin, showing the masses of cellular granulation 



tissue in the cutis. X 80 . 



97. Superficial part of leprous skin ; the cells of the granulation tissue appear 



as dark patches. X 500 ..... 



98. High-power view of portion of leprous nodule. X I ipo 



99. Glanders bacilli amongst broken-down cells, x 1000 

 100. Glanders bacilli, from a pure culture. X looo 

 loi. Actinomycosis of human liver. X 500 



102. Actinomyces in human kidney. X 500 . 



103. Colonies of actinomyces. X 60 



104. Cultures of the actinomyces on glycerin agar 



105. Actinomyces, from a culture on glycerin agar, x 1000 



106. Streptothrix madurse. X 1000 



107. Surface colony of the anthrax bacillus. X 30 . 



108. Anthrax bacilli, arranged in chains. X 1000 



109. Stab-culture of the anthrax bacillus . 

 no. Anthrax bacilli containing spores, X loco 



111. Scraping from spleen of guinea-pig dead of anthrax. X looo 



112. Portion of kidney of a guinea-pig dead of anthrax. X 300 



113. Specially large clump of typhoid bacilU in a spleen. X 500 



1 14. Typhoid bacilli. X 1000 .... 



115. Typhoid bacilH frfim a young culture on agar, x 1000 . 



116. Stab and stroke cultures of typhoid bacillus and bacillus coli 



117. Colonies of typhoid bacillus. X 15 . . . ... 



118. Bacillus coli communis. X 1000 . . . . 

 118 A. Bacillus dysenterife, from an agar culture 48 hours old. X 



119. Film preparation from diphtheria membrane, x 1000 . 



120. Section through a diphtheritic membrane, showing diphtheria bacilli in 



clumps. X 1000 ....... 



121. Cultures of the diphtheria bacillus on an agar plate . 



122. Diphtheria bacilli, from a twenty-four hours' culture on agar. X 1000 . 



123. Diphtheria bacilli of larger size than in previous figure. X 1000 



124. Involution forms of the diphtheria bacillus, x 1000 



125. Pseudo-diphtheria bacillus (Hofmann's), Young agar culture, x looo 



126. Film preparation of discharge from wound in a case of tetanus. X 1000 



127. Tetanus bacilli, showing flagella. X 1000 



128. Spiral composed of numerous twisted flagella of the tetanus bacillus. 



X 1000 .... 



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