MICROCOCCUS GONORRH(EjE 357 



the pair of individual cells having the appearance of two 

 hemispheres, with the diameters opposed, and separated 

 from one another by a narrow, colorless slit. (Is this the 

 case with micrococcus aureus or streptococcus pyogenes?) 



Second, in gonorrheal pus it is nearly always within the 

 protoplasmic bodies of pus-cells. (How does this compare 

 with the conditions found in ordinary pus?) 



Third, it stains readily with the ordinary staining-reagents, 

 but loses its color when treated by the method of Gram. (Treat 

 a cover-slip from ordinary pus by this method and note 

 the result.) 



Fourth, it does not develop upon any of the ordinary 

 media used in the laboratory; while the common pus- 

 organisms, with perhaps the exception of the streptococci, 

 are vigorous growers and are not markedly fastidious as to 

 their nutritive medium. 



Fifth, when obtained in pure culture by either of the 

 special procedures noted above, its cultivation may be 

 continued upon the same medium; but growth will usually 

 not be observed if it is transplanted to ordinary nutrient 

 gelatin, agar-agar, bouillon, or potato; should it grow under 

 these circumstances its development will be very feeble. (Is 

 this the case with common pus-producers?) 



Sixth, it has no pathogenic properties for animals, while 

 several of the pyogenic cocci, notably micrococcus aureus 

 and streptococcus pyogenes, are usually capable of exciting 

 pathological conditions. (This is less commonly true of 

 streptococcus pyogenes than of micrococcus aureus.) 



