DESCRIPTION OF SPECIES. 



563 



gelatine they slowly liquefy it along 

 the whole needle track, and form 

 on the surface an orange-yellow 

 growth. On potatoes they slowly 

 develop the same pigment. 



Sarcina Candida (Reinke). 

 Cocci 1*5 to 1*7 /x in diam., singly, 

 in pairs, and in tetrads. 



Colonies are circular and shining, 

 white, and later yellowish. 



Inoculated in the depth of gela- 

 tine liquefaction quickly takes place 

 along the track of the needle. 



On the surface of agar a white, 

 moist layer develops. 



They were found in the air of 

 breweries. 



Sarcina flava (De Bary). Small 

 cocci in packets. 



Inoculated in the depth of gela- 

 tine they produce liquefaction. 



On agar they form a yellow 

 layer. 



On potato the growth is limited 

 and yellow. 



They were isolated from beer. 



Sarcina hyalina (Kutzing). 

 Cocci round, 2'5 p. in diam., almost 

 colourless. United in families of 

 4 to 24 cells, reaching 15 p. in diam. 



They occur in marshes. 



Sarcina intestinalis (Zopf). 

 Cocci in groups of four or eight. 

 Yery regular in form ; never in 

 the large packets which occur in 

 Sarcina ventriculi. 



They are found in the intestinal 

 canal, especially the ca3cum, of 

 poultry, particularly fowls and 

 turkeys. 



Sarcina litoralis (Oersted). 

 Cocci 1"2 to 2 \JL in diam., bound 

 together in 4 to 8 families, which, 

 in their turn, may unite and in- 

 clude as many as 64 tetrads. 

 Plasma colourless ; in each cell 

 1 to 4 sulphur granules. 



They were found in sea water 

 containing putrefying matter. 



Sarcina lutea (Schroter). 

 Cocci singly, in pairs, tetrads and 

 packets. A single individual in a 

 tetrad may be divided into two, or 

 into four, so that a tetrad within a 

 tetrad results. 



Colonies are round, slightly 

 granular in appearance, and yellow. 



Inoculated in the depth of 

 gelatine they grow rapi.lly : the 

 gelatine becomes liquefied, and the 

 yellow growth sinks to the bottom 

 of the tube. 



FlO. 221. SABCIXA X 600 (FLt'GOK. 



Cultivated in agar they form a 

 colourless growth along the track 

 of the needle, and a bright canary- 

 yellow layer upon the surface. 



On potato they form a yellow 

 layer. 



They are present in air. 



Sarcina mobilis ( Maurea). 

 Cocci 1-5 ^ in diam., in pairs, and 

 in tetrads. They are motile. 



Colonies, at first white, become 

 brick-red. 



Inoculated in the depth of gela- 

 tine, there is, after several days, a 

 slight growth along the track of 

 the needle, and a patch of growth 

 on the free surface which gradually 

 turns red. In about two weeks 

 liquefaction produces a fin, 

 shaped appearance ; later the lique- 

 faction extends to the sides of the 

 test-tube. 



In broth turbidity is produ 

 and a yellowish-red depo- 



On agar the growth, at firet w 

 changes to a brick -n,l colour. 



There is no growth on potato, 

 ami milk i< not OOOgolftted. 



They were isolated from a.- 

 Boid 



Sarcina pulmonum ( Mauser). 

 Cocci from 1 to l'"> /i in liam . in 

 tetrads and packets. 



Colonies white and small. They 

 are coarsely granular. 



Inoculated in the depth of gela- 

 tine the growth is scanty in the 

 track of the needle, but on the free 

 surface there is a circular, well- 

 defined, translucent patch, which 



