DESCRIPTION OF SPECIES. 



555 



They were isolated from an 

 abscess of the gums. 



Micrococcus gonorrhoeas 

 (p. 190). 



Micrococcus havaniensis 

 (Sternberg). Cocci 4'5 \i in diam. 



The colonies are circular and of 

 a blood-red colour. 



The cocci inoculated in the depth 

 of gelatine produce a colourless 

 growth in the track of the needle 

 and a carmine patch on the surface. 



On agar and on potato they form 

 a thick irregular carmine layer. 



Micrococcus in Biskra-button 

 (Heydenreich). Cocci in pairs, 

 86 to 1 p. in length, occasionally 

 tetrads : capsulated. 



Inoculated in the depth of gela- 

 tine they form a greyish-white fila- 

 ment composed of closely packed 

 colonies, and a yellowish- white film 

 on the free surface. Liquefaction 

 commences at the upper part of the 

 needle track in a few days, forming 

 a funnel which extends until, in 

 two weeks, the gelatine is com- 

 pletely liquefied. 



On the surface of agar a shining 

 white or yellowish-white layer de- 

 velops in twenty-four hours. 



On potato the growth is similar. 



Inoculations are said to produce 

 in rabbits, dogs, fowls, sheep and 

 horses a morbid condition of the 

 skin similar to the disease known as 

 Biskra-button or Pendjeh sore. In 

 man they produce suppuration when 

 rubbed on the skin. 



They were isolated from the 

 disease known as Pendjeh sore, 

 Biskra-button or clou de Btskra. 



Micrococcus in gangrenous 

 mastitis in sheep. Cocci singly, 

 in pairs, and in masses. 



Colonies are spherical, white, and 

 under a low power have a brown 

 nucleus and transparent margin. 



The cocci inoculated in the depth 

 of gelatine produce a conical area 

 of liquefied jelly with a copious 

 white deposit. 



On agar they produce a white 

 layer, which later turns yellowish 

 in colour. 



On potato they form a greyish 

 growth. 



Injected into the mamary gland 

 of sheep they produce inflammatory 

 oedema, and a fatal result in 

 twenty-four to forty-eight hours. 



In rabbits they are pyogenic. 



They were isolated from the milk 

 in cases of gangrenous mastitis in 

 sheep. 



Micrococcus in infectious 

 p 1 e u r o-pneumonia (Poels and 

 Nolen) p. 242. 



Micrococcus in influenza (Fis- 

 chel). Cocci from 1 to 1-25 p in 

 diam., singly, in pairs, and chains. 



Extremely minute colonies appear 

 in three days. 



Inoculated in the depth of gela- 

 tine a milk-white filament forms 

 along the track of the needle. Lique- 

 faction commences in four days 

 at the upper part, and extends 

 slowly. 



On agar the colonies are pure- 

 white. 



On potato the growth is yellowish- 

 white. 



They do not grow on blood serum 

 or in milk. 



Intravenous injection in dogs is 

 said to produce symptoms like 

 distemper. 



They were obtained from the 

 blood in cases of influenza. 



Micrococcus in influenza 

 (Kircbner). Cocci in pairs and 

 chains ; capsulated. They grow at 

 37 C. 



The colonies are transparent, 

 whitish. 



On the surface of agar there is 

 an abundant growth, but it is 

 limited in the depth of the jelly. 



Inoculation experiments were 

 inconclusive. 



They were obtained from the 

 sputum in cases of influenza. 



Micrococcus in pemphigus 

 (Almquist). Cocci '5 to 1 /i in 

 diam., singly and in pairs ; identi- 

 cal with Staphylococcus pyogenes 

 aureus. 



The cocci vaccinated on the arm 

 are said to have produced bullae. 



They were isolated from pem- 

 phigoid bullas in children. 



Micrococcus in pemphigus 

 (Demme). Cocci -8 to 1*4 p. in 



