DESCRIPTION "i -1 



different organs, especially in the 

 srlomeruli of the kidneys. Rabbits 

 and mice inoculated with blood 

 from the heart proved susceptible 

 to the disease. 



Micrococcus in syphilis (Ditse 

 and Taguchi). Cocci and diplo 

 cocci. 



They produce a greyish-white 

 growth in nutrient media. 



They are said to produce inflam- 

 matory changes in the internal 

 organs and disease of the blood- 

 vessels when inoculated in dogs, 

 rabbits and sheep. 



They were obtained from the 

 blood in cases of syphilis. 



Micrococcus in trachoma 

 (p. 190). 



Micrococcus in yellow fever 

 (p. -260). 



Micrococcus lactis viscosus 

 (Conn). Cocci in pairs and chains. 

 Colonies circular and granular. 

 Inoculated in the depth of gela- 

 tine liquefaction begins at the upper 

 part of the needle track, and extends 

 until the gelatine is completely 

 liquefied. The liquefied gelatine is 

 viscous, and may be drawn out i 

 long threads. 



On the surface of agar they form 

 a white, shining layer. 



In broth there is an abundant 

 growth, and a film on the surface. 

 " They coagulate milk, producing 

 butyric acid, and giving it a b 

 taste. They were obtained 

 bitter cream. 



Micrococcus luteus (Cohn).- 

 Oval cocci 1 to 1-2 p. in diam. 



Colonies yellow, with irregular 

 contours, and granular. 



Inoculated in the depth of gel 

 tine a granular filament develops in 

 the track of the needle, and on the 

 free surface a yellow patch 



On agar the growth is slimy and 



elliptical, with highly refractive o-ll 

 contents. 



They form yellow drop* of I 

 'A mm. diam. on boiled potato : and 

 a thick, wrinkled, yellow skin on 

 nutrient liquids. 



The colouring-matter in insoluble 

 in water, and unchanged by 

 phuric acid or alkalies. 



Micrococcus ochroleucus 

 (Prove). Cocci '5 to '8 p in diam., 

 singly, in pairs. ;ui<l ^hort chains. 



Colonies minute and colourlett, 

 with crenated margin, from whit -h. 

 later, processes extend into the gela- 

 tine, while the centre of the colony 

 becomes yellow. 



On the surface of gelatine a film 

 develops, which in a few days turna 

 yellow. Old cultures have a p 

 liar smell. 



The yellow pigment can be ex- 

 tracted with alcohol, i iblf 

 in water, and decolorised by a 



They were obtained from human 

 urine. 

 Micrococcus of Forbes 



'Micrococcusplumosus (Hi 

 gam). Cocci '8 M i diam., i 

 masses. 



Colonies yellowish-white. 

 Inoculated in the depth of gel 

 tine long delicate acicular procea* 

 shoot out from the needle track 

 and on the free surface. 



On potato the growth is simila 

 They were isolated from watei 

 Micrococcus pneumonia crc 



v,u puu^ the growth is yellow, 

 and after a time wrinkl. 



The pigment is insoluble in water, 

 ether and g alcohol, and not destroyed 

 by acids or alkali^ 



They occur in water. 



Micrococcus luteus <Mn;- 

 -Cocci similar m size to the above, 



tenuis 

 irre^- 

 somewhat larger than staphvlocooci. 



Si. 11 !?** 5-H 



deeply, leaving a clear space m the 



^Intulatedinthedepthof^la- 

 tine a slightly opaque gro 



f rmed agar a thin depomt yipmn 

 ^e needle track, *1 



M-enfowi't 

 in three out of tbil 



