LIST OF ILLUSTRATIONS xxi 



FIG. PAGE 



135. Cholera spirilla stained to show the terminal flagella. 



xlOOO ....... 401 



136. Cholera spirilla from an old agar culture. x 1000 . . 401 



137. Puncture culture of the cholera spirillum . . . 403 



138. Colonies of the cholera spirillum on a gelatin plate . . 404 



139. MetchnikofFs spirillum, x 1000 . .417 



140. Puncture cultures in peptone-gelatin . . . 418 



141. Finkler and Prior's spirillum, x 1000 . . . 419 



142. Influenza bacilli from a culture on blood agar. x 1000 . 420 



143. Film preparation from a plague bubo. x 1000 . . 426 



144. Bacillus of plague from a young culture on agar. x 1000 . 427 



145. Bacillus of plague in chains. x 1000 . . . 427 



146. Culture of the bacillus of plague on 4 per cent salt agar. 



xlOOO ....... 428 



147. Section of a human lymphatic gland in plague. x 50 . 430 



148. Film preparation of spleen of rat after inoculation with the 



bacillus of plague. x 1000 .... 432 



149. Spirilla of relapsing fever in human blood, x about 1000 . 439 



150. Spirillum Obermeieri in blood of infected mouse. x 1000 . 441 



151. Film of human blood containing spirillum of tick fever. 



xlOOO ....... 444 



152. Spirillum of human tick fever (Spirillum Duttoni; in blood 



of infected mouse, x 1000 .... 445 



153. Micrococcus melitensis. x 1000 .... 448 

 154-159. Various phases of the benign tertian parasite . . 525 

 160-165. Exemplifying phases of the malignant parasite . . 526 



166. Amoebae of dysentery ..'.... 538 



167. Section of wall of liver abscess, showing an amceba of spherical 



form with vacuolated protoplasm. x 1000 . . 54Q 



168. Trypanosoma Brucei from blood of infected rat. N"ote in two 



of the organisms commencing division of micronucleus and 



undulating membrane, x 1000 .... 554 



169. Trypanosoma. gambiense from blood of guinea-pig. x 1000 . 557 



170. Leishman-Donovan bodies from spleen smear, x 1000 . 564 



171. Leishman-Donovan bodies within endothelial cell in spleen. 



x 1000 565 



