34 



MANUAL OF BACTERIOLOGY. 



Chromogenesis (') Pigment in water insol- 

 uble, soluble; other solvents 



Odor, absent, decided, resembling 



Consistency, slimy, buiyrous, viscid, membraneous, coriaceous, brittle. 

 Medium, grayed, browned, reddened, blued, greened. 



3. Loeffler's Blood-serum. 



Stroke invisible, scanty, moderate, abundant. Form of growth, 

 filiform, echinulate, beaded, spreading, plumose, arborescent, rhizoid. 

 Elevation of growth flat, effuse, raised, convex. 

 Lustre, glistening, dull, cretaceous. 

 Topography, smooth, contoured, rugose, verrucose. 



Chromogenesis (^) 



Medium grayed, browned, reddened, blued, greened. 



Liquefaction begins in d, complete in d. 



4. Agar Stab. 



Growth uniform, best at top, best at bottom; surface growth scanty, 



abundant; restricted, wide-spread. 

 Line of puncture, filiform, beaded, papillate, villous, plumose, 

 arborescent; liquefaction. 



5 . Gelatin Stab. 



Growth uniform, best at top, best at bottom. 



Line of puncture, filiform, beaded, papillate, villous, plumose, 

 arborescent. 



Liquefaction, crateriform, napiform, infundibuliform, saccate, strati- 

 form; begins in d, complete in d. 



Medium fluorescent, browned 



6 . Nutrient Broth. 



Surface growth, ring, pellicle, fiocculent, membraneous, none. 

 Clouding slight, moderate, strong; transient, persistent; none; fluid 



turbid. 



Odor, absent, decided, resembling 



Sediment, compact, fiocculent, granular, flaky, viscid on agitation, 



abundant, scant. 



7. Milk. 



Clearing without coagulation. 

 Coagulation prompt, delayed, absent. 



Extrusion of whey begins in days. 



Coagulum slowly peptonized, rapidly peptonized. 



Peptonization begins on d, complete on d. 



Reaction, id 2d , 4d , lod 2od . . . , 



