15 



THE ORGANISM IS A MICROCOCCUS. 



THE GELATINE IS LIQUEFIED RAPIDLY. 



THE COLONIES ARE YELLOW. 



THE COCCI ARE ARRANGED AS DIPLOCOCCI. 



Diplococcus citreus liquefaciens (Unna and Tommasoli), small 

 oval cocci, in pairs, or tetrads, or short chains, each coccus 

 about 0'4 to 0"! ^ in diameter ; from the skin in cases of eczema 

 seborrhceicum ; the colonies appear first as minute white discs, 

 becoming yellow in about fourteen days ; the liquefaction is not 

 very rapid ; a floooulent deposit is formed in the softened 

 gelatine. 



Diplococcus fluorescens foetidus (Klamann), from the posterior 

 nares ; cocci arranged in pairs 1'4 /* in diameter, sometimes 

 forming short chains ; the colonies are of a grayish-brown 

 colour, the gelatine becoming of a greenish colour, giving off a 

 foetid odour, a shining iridescent film forms on the surface of 

 the liquefied gelatine. 



