SYSTEMATIC DESCRIPTION OF SPECIES. 103 



SPIROCH^ETA SCHAUDINNI. 



(Prowazek, 1907.) 



Spirochaetes and fusiform bacilli are found in the 

 affection known as tropical ulcer of the leg (Fig. 79). 

 Prowazek states that they are band-shaped organisms, 

 possessing an undulating membrane, and that they 

 multiply by longitudinal fission. In a specimen (from 

 case of this disease?) sent to me by Capt. A. Whitmore, 

 from Rangoon, the spirochaetes were accompanied by a 



FIG. 79. FIG. 80. 



FIG. 79. Spirochaete of ulcus tropicum. Sexual forms. X 2250. 

 (Prowazek.) 



FIG. 80. Spirochaetes and cladothrix (?) in ulcus tropicum. 

 (From a specimen by Capt. A. Whitmore.) 



large number of threads resembling filaments of 

 cladothrix (Fig. 80). The spirochaetes were of about 

 the same thickness as the threads, and stained almost 

 exactly the same tint with fuchsine. It was difficult to 

 resist the conclusion that they were forms of the same 

 organism. (Vide sub Sp. gracilis) . 



Spirochaetes and elongated rod-shaped bodies were 

 found by Assmy in phagedaenic ulcers. 



SPIROCHAETES IN GANGRENOUS PROCESSES. 



Polland found spirochaetes in cases of hospital gan- 

 grene; the organisms were usually from 15 to 20/4 in 

 length, but forms were met with up to 140;*. They 



