EXPERIMENT STATION BULLETINS. 347 



MICRO-ORGANISAIS OF SAMPLE IV. 



IVb. 

 Morphology. Bacillus. 



Size — average diameter, .7 microns; length, 1.2 to 1 .G microns. 



Motility — motile. 



Staining — stains readily. 

 Gelatin Colony. 



Round, convex, entire. 

 Gelatin Stab. 



Beaded. 

 Agar. 



Cdistening, opalescent. 

 Bouillon. 



Tiirbid, with .sedimeiil and scum. 

 Potato. 



Moist, discolored. 

 Milk. 



Litmus reduced. Also see chart combination l\h and I\'x. 

 Fermentation of Sugars (Dextrose, Lactose, Saccharose). None. 

 Proteolysis. 



iNone. 

 Biocliemical tests. 



Indol produced. No Jiydrogen sulphide, or ammonia. Nitrates reduced. 

 Chromogenesis . 



Yellow. 



IVc. 



jMorphology. Bacillus. 



Size— average diameter, .7 microns; length, .8 microns to l.S microixs. 



Motility — not motile. 



Staining — stains readily. 

 Gelatin Colony. 



Round, pulvinate, entire, granular. 

 Gelatin Stab. 



Filifonn. 

 Agar. 



Dull, opalescent. 

 Bouillon. 



Turbid with sediment. 

 Potato. 



Discolored, dry and scant growth. 

 Milk. 



Litmus reduced. Also see chart combination IVc and IVx. 

 Fermentation of Sugars (Dextrose, Lactose, Saccharose). None noted. 

 Proteolysis. 



None. 

 Biochemical test. 



No indol, or hydrogen sulphide. Ammonia present. Nitrates are reduced. 

 Chromogenesis. 



No pigment. 



^h)rphology. Sireptococcus. 



Size — average diameter, 1.3 niicnuis. 



Motility — No motion. 



Staining— difhcultly shuned. 

 Gelatin Colony. 



Round, pulvinate, entire. 

 Gelatin Stab. 



Tuberculate. 

 Agar. 



IXill, opalescent. 

 Bouillon. 



Turbid, with sediment. 

 Potato. 



No growth. 



IVd. 



