HIDEYO NOGUCHI 



497 



Fig. 121 

 Fig. 122 

 Fig. 123 

 Fig. 124 

 Fig. 125 

 Fig. 126 

 Fig. 127 



— Leptospira interrogans, culture, Guayaquil Strain i 



— Leptospira hebdomadis, culture presented by Dr. Inada 



— Leptospira icteroliaemorrhagiae, cultivated from rats caught in New York City 



— The very small type of water leptospira 



— Water leptospira of medium size, resembling Leptospira icteroliaemorrhagiae 



— The largest of the varieties of leptospiras in water 



— Leptospira boiis, a very small leptospira found in the stomach of the ox 



Plate XIII 



Fig. 128. — Spirella morsusmiiris of rat-bite fever. Photographs (Row's strain, Ind. J. Med. Res.. 

 5, 386. 1917) presented by Dr. A. C. Coles, of Bournemouth, England. Giemsa's stain. X 1,500. 

 Fig. 129. — Spirella cants, found in the dog's stomach; darkfield view. X 1,000 

 Fig. 130. — Spirella muris, from the peritoneal cavity of the white mouse; darkfield view. X 1,000 



