156 



REPORT ON THE DISEASES OP SILKWORMS IN INDIA 



Micrococcus d. 

 Morphology . . Diploco ecus, at times in staphylococcus like groups — small, diam. 



0-55n. 

 Gram . . . Positive. 



Agar plate . . Round, greasy, sulphur yellow. 

 Agar slope . . Filiform, greasy, sulphur yellow, slightly raised. 

 Gelatine stab . Liquifying in form of nail. 



Potato . . . Raised, greasy, yellow. 



Nutrient broth . Turbid, yellow ppt. 

 Litmus milk . . Coagulated — acid after some time. 

 Dextrose . . No gas. 

 Lactose . . No gas. 



Habitat . . Gut of diseased mulberry caterpillars ; gut of healthy eri and 



mulberry caterpillars ; dead mulberry moths ; mulberry leaves ; 



air. 

 Probably Streptococcus o of Sasaki. 



Micrococcus luteus, Lehmann and Neumann. 



Morphology . 

 Gram . 

 Agar plate 

 Agar slope 

 Gelatine stab 

 Potato . 

 Nutrient broth 

 Litmus milk . 

 Dextrose 

 Lactose 

 Habitat 



Micrococcus e. 



Diplococcus — small, diam. 0"55. 

 Positive. 



Round, Indian red, granular. 

 Filiform. 



Liquified in form of nail. 

 Slight, reddish growth. 

 Turbid, red ppt. 

 Coagulated— acid. 

 No gas. '\ 

 No gas. ; ' 



Dead mulberry moths ; healthy mulberry caterpillars ; mulberry 

 leaves ; air. 



