190 PHYSIOLOGICAL CHARACTERS 



1. RELATION TO TEMPERATURE: c ,.... 



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: 



5. GAS PRODUCTION IN SUGAR MEDIA: 



a. dextrose (1) Shake culture: 



(2) 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 iu open arm 



gas formula, H: COa: : : 



fe. lactose c. saccharose 



6. ACID OR ALKALI PRODUCTION : - - 



litmus milk. 



7. REDUCTION OP NITRATES: 



to nitrites to ammonia.. . 



8. INDOL PRODUCTION 



48 hours days . 



8. ENZYME PRODUCTION: 



proteolytic 



digestion of gelatin digestion of casein . 



diastatic , 



10. CHARACTERISTIC ODOR:..... 



11. PATHOGENESIS (or other special characters) : 



