80 BACTERIOLOGY 



17. M. dissimilis Dyar 



Trans. N. Y. Acad, of Sci., VIII, 1895, 353. 



Morphology. Cocci 1.0/u.; in masses. 



Gelatin colonies. Round, opaque, surrounded by an obscure granular veil. 



Agar slant. Growth white, opaque. 



Milk. Coagulated. Nitrates reduced to nitrites after 28 days. 



Litmus milk. Color unchanged. 



Pepton-rosolic acid solution. Unchanged. Gelatin rapidly liquefied. 



Habitat. Air. 



18. M. ascoformans Johne 



Berichte Veterinarwesen in K. Sachsen, 1885, 27. 



M. botryogenus Rabe : Deutsche Zeitsch. f. Thiermedizin, 1886, 137. 



Morphology. Diplococci and tetrads, similar to M. luteus. 



Gelatin colonies. Very minute, like granules ; microscopically round, entire,. 



without special characters. 

 Gelatin stab. In depth growth white, filiform; on the surface a slow crateri- 



form liquefaction. 

 Potato. Growth yellowish, with a fruity odor. 

 Agar slant. Growth scarcely visible. 

 Pathogenesis. Guinea pigs die of septicaemia. Mice immune. Rabe and 



Kitt by inoculations produced true fibroma in horses. Inoculations of 



sheep cause inflammation, oedema, and necrosis. 

 Habitat. Associated with botryomycosis in horses. 



19. M. albicans (Trev.) Bumm 



Gray white micrococcus Bumm : Der Mikroorg. Schleimhauterkrank., 1885, 25. 



Neissera albicans Trevisan : Gen. e Spec. Batteriaceae, 1889. 



M. albicans-amplus Kruse : Fliigge, Die Mikroorganismen, 1896, 186. 



Morphology. Diplococci like gonococcus, but larger, 2-2.8 fi, or in groups of 



3-4 elements. 

 Gelatin colonies. Grayish white, slightly elevated. 

 Gelatin stab. In depth a grayish white stripe; on the surface a grayish 



white growth ; after a time a liquefaction takes place under the surface 



growth. 

 Habitat. Isolated from vaginal secretions. 



