THE VOGES-PKOSKAUER REACTION 163 



the other substances tested fructose, galactose, raffinose, manni- 

 tol, glycerol, salicin, and dextrin the carbinol test was negative. 



Of the cultures which were positive for the Voges-Proskauer 

 reaction, 100 per cent formed the carbinol from fructose, 90.9 

 per cent from galactose, 68.2 per cent from lactose, 95.5 per cent 

 from sucrose, 36.4 per cent from raffinose, 59.1 per cent from 

 mannitol and 22 per cent from salicin. 



The Voges-Proskauer reaction is of considerable sanitary 

 significance. It differentiates between fecal and non-fecal 

 coli-hke organisms and may be an index of soil washings. 



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* Original article not available. 



