DESCRIPTION OF SPECIES. 



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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 (Eeinke).— 

 Cocci 1-5 to 1'7 ^ 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 (Be 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 (Kiitzing).— 

 Cocci round, 2'5 /j, in diam., almost 

 colourless. United in families of 

 4 to 24 cells, reaching 15 /j, in diam. 



They occur in marshes. 



Sarcina intestinalis (Zopf).— 

 Cocci in groups of four or eight. 

 Very regular in form ; never in 

 the large packets which occur in 

 Sarcina ventricuh. 



They are found in the intestinal 

 canal, especially the csecum, of 

 poultry, particularly fowls and 

 turkeys. 



Sarcina litoralis (Oersted). — 

 Cocci 1'2 to 2 /i 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 rapidly ; the 

 ge]a,tine becomes liquefied, and the 

 yeUow growth sinks to the bottom 

 of the tube. 







Tig. 224.— Sarcina x 600 (Flugge. 



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 /li 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 funnel- 

 shaped appearance ; later the lique- 

 faction extends to the sides of the 

 test-tube. 



In broth turbidity is produced,, 

 and a yeUowish-red deposit. 



On agar the growth, at first white, 

 changes to a brick-red colour. 



There is no growth on potato,, 

 and milk is not coagulated. 



They were isolated- from ascitic 

 fluid. 



Sarcina pulmonum (Hauser).— 

 Cocci from 1 to 1"5 /i in diam., 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. 



