XX LIST OF ILLUSTRATIONS. 



FIG. PACK. 



129. Tetanus bacilli, some of which possess spores, x 1000 .... 379 



130. Bipolar spore formation in glucose agar culture of B. tetani. X lOOO . 379 



131. Stab-culture of the tetanus bacillus (Kitasato) 381 



132. Film preparation in a case of malignant oedema in human subject. X 1000 394 



133. Bacillus of malignant oedema. X 1000 395 



134. Stab-cultures in agar 396' 



135. Bacillus of quarter-evil, showing spores. X 1000 401 



136. Bacillus aerogenes capsulatus ......... 403. 



137. B. aerogenes capsulatus, showing coagulation of casein .... 405 



138. Cholera spirilla. X 1000 .......... 409 



139. Cholera spirilla stained to show the terminal flagella. X 1000 . . 409 



140. Cholera spirilla from an old agar culture. X 1000 409- 



141. Puncture culture of the cholera spirillum . . . . . . .411- 



142. Colonies of the cholera spirillum in a gelatin plate 412: 



143. Metchnikoff's spirillum. X 1000 427 



144. Puncture cultures in peptone gelatin ....... 428 



145. Finkler and Prior's spirillum from an agar culture. X 1000 . . . 429 



146. Influenza bacilli from a culture on blood agar. X 1000 .... 430- 



147. Film preparation from a plague bubo, showing enormous numbers of 



bacilli. X 1000 436- 



148. Bacillus of plague from a young culture on agar. X 1000 . . . 43& 



149. Bacillus of plague in chains. X 1000 ....... 437 



150. Culture of the bacillus of plague on 4 per cent salt agar. X 1000 . . 437 



151. Section of a human lymphatic gland in plague. X 50 . . . . 439 



152. Film preparation of spleen of rat after inoculation with the bacillus of 



plague. X 1000 441 



153. Spirilla of relapsing fever in human blood. X about 1000 . . . 448- 



154. Micrococcus melitensis, from a two days' culture on agar at 37° C. X 1000 453 



155. Bacillus icteroides, from a young culture on agar (Sanarelli) . X lOOO . 456- 



156. Culture of Bacillus icteroides on agar. Natural size .... 457 

 157-162. Various phases of the benign tertian parasite ..... 518- 

 163-168. Exemplifying phases of the malignant parasite . ... 519 



169. Amoebae of dysentery .......... 530- 



1 70. Section of wall of liver abscess, showing an amoeba of spherical form with 



vacuolated protoplasm, x 1000 532 



