42 
THE VIBRIO GROUP— 
A. Microspira comma Schroter, 1886. [Koch’s comma bacillus of Asiatic cholera.] 
B. Microspira metshnikovi (Gamaleia, 1888) Migula, 1900. 
C. Microspira finlderi Schroter. 
D. Vibrio Denecke. 
E. Microspira aquatilis (Gunther, 1892 j Migula, 1900. 
Isolation. 
Diagnosis. 
Pfeiffer’s phenomenon. 
IVidal reaction. 
Immunity. 
Haffkine’s prophylactic. 
Viability. 
Disinfection for cholera. 
Methods of introduction into system. 
Channels of elimination. 
Relation to water supply. 
Relation to flies and other insects. 
Quarantine regulations relating to cholera. 
The management of isolated cases. 
The control of epidemics. 
Prophylaxis. 
