206 Physiological Characters 



1. Relation to temperature: 



optimum °C. ; limits to .•. °C.; 



thermal death-point °C.; time of exposure minutes; 



medium in which exposure is made 



2. Relation to free oxygen: 



3. Relation to other agents, such as 



desiccation, light, disinfectants, etc- :- 



4. Pigment production:, 



Gas production in sugar media: 



tt. dextrose (1) Shake culture: 



(2J Fermentation tube, growth in open arm closed arm 



rate of development: 24 hours per cent., 48 hours per cent. 



72 hours per cent hours per cent. 



reaction in open arm 



gas formula, H: CO2: : : 



h. lactose c. saccharose 



Acid or alkali production: 



litmus milk . 



7. Reduction of nitrates: 



to nitrites to ammonia. . . 



8. Indol production 



48 hours days . 



9. Enzyme production: 



proteolytic 



digestion of gelatin digestion of casein . 



diastatic 



10. Characteristic odor: 



11. Pathogenesis (or other special characters) : 



