lOO BACTERIOLOGY 



Bouillon. Clear; yellowish sediment. 



Milk. In 20 days partly coagulated ; acid. 



Potato. Growth thin, glistening, citron-yellow, becoming wrinkled (?). 



Habitat. Air and water. 



68. M. Uruguae 



M. No. 40 Conn : I.e., 1894, 78. 

 Morphology. Cocci 0.9 fi. 

 Gelatin colonies. A little pit, with a central granular yellowish nucleus, and 



an outer lobate rim. 

 Gelatin stab. In depth a narrow fiinnel or pit, which is quite dry. There is- 



formed a thick syrup with a yellowish sediment and a yellowish scum. 



The gelatin never completely liquefies even after weeks of growth. 

 Agar slant. Growth Naples yellow, rough, dry. 

 Potato. Growth Naples yellow, dry, thick, mounded. 

 Milk. Coagulated in 5 days ; acid. 



Bouillon. Remains clear, with a slight flaky scum, and a slight sediment. 

 Habitat. Milk. 



69. M. conglomeratus (Bumm) Fliigge 



Diplococcus citreus-conglomeratus Bumm ; Der Mikroorg, der gon. Schleimhauterkrank- 



ungen Wiesbaden, 1885, 17. 

 M. citreus-conglomeratus Fliigge: Die Mikroorganismen, 1886. 



Morphology. Gonococcoid forms, frequently in tetrads, usually in conglomer- 

 ate masses. 



Gelatin colonies. Deep : lemon-yellow, with lobular projections. Surface r 

 moist glistening, becoming cleft — scaly. 



Gelatin stab. A crateriform liquefaction, with a yellow pellicle on surface. 



Habitat. From gonorrheal pus, air, dust. 



70. M. flavus Fliigge 



M. flavus-liquefaciens Fliigge : I.e., l885. (See No. 66.) 



Morphology. Cocci large ; in twos and in clumps. 



Gelatin colonies. Deep : round-oval with sometimes lobular projections. 



Surface : yellowish brown, finely serrate ; surrounded by a zone of 



liquefied gelatin, with radial extensions from the central nucleus. 

 Gelatin stab. In depth, yellowish colonies ; on surface, yellowish colonies 



becoming confluent, and later depressed by liquefaction of the gelatin to 



a depth of 2 mm. 

 Potato. Growth deep yellow. 

 Habitat. Air, water. 



