68 BACTERIOLOGY 



27. Str. agalactiae Adametz 



Sir. mastitidis-sporadictz, Guillebeau; Landw. Jahrb. d. Schweiz, Bd. IV, 1890, 27. 

 Str. mastitis-epidemiccB, Guill. : Centralblatt f. Bakteriologie, XVIII, 209. 

 Str. agalacticE Adametz : Milch Zeitung, 1893. 



Morphology. Cocci in short-long chains, like Str. pyogenes. 



Milk. Yellowish flocculent coagulae, and often much gas. Glucose and milk 



sugar converted into lactic acid, CO., and traces of volatile fatty acids and 



alcohol. 



Habitat. Associated with mastitis of cows and goats. 

 Str. of mastitis in cows Nocard-Mollereau : Ann. Inst. Pasteur 1887, 109.. 



Insufficiently described to distinguish from the above. 



28. Str. Weissii Trevisan 



Attid. Ace. Fis. Med. Stat. Mil., Ser. IV, Vol. Ill, 119. 

 Mikrokokus der Lungenseuche des Kindes, Pocls-Nolen : Fortschritte d. 

 Medizin, 1886, 217. 



Morphology. Cocci round, 0.8-1.0 //,, singly and in chains of six. 



Gelatin colonies. Round, white ; like Friedlander's bacillus. 



Pathogenesis. Direct inoculation of cultures into the lungs of cattle, dogs,. 



cats, rabbits, and guinea pigs produce pneumonia, with abundant cocci in. 



exudate. Subcutaneous inoculations negative. 

 Habitat. Isolated from lung exudate in pleuropneumonia of cattle. 



29. Str. equi Sand-Jensen 



Streptococcus der Druse der Pferde Sand-Jensen : Archiv f. wissen. u. prakt. Thierheil- 



kunde, XIV, 1887. 

 Str. equi Sand-Jensen : 1. c. 



Morphology. Like Str. pyogenes. 



Pathogenesis. Mice inoculated subcutaneously show an abscess at the point 



of inoculation, and metastatic suppuration of the lymphatics. 

 Habitat. Associated with an inflammation of the upper air passages of horses r 



and neighboring lymphatic spaces. 



CLASS IV. CHROMOGENIC ; PRODUCE PIGMENT ON GELATIN OR AGAR 



I. Pigment yellowish. 

 A. Gelatin liquefied. 



30. Str. "vermiformis Sternberg. 



