234 Agricultural Bacteriology. 



vent the growth of aerobic bacteria that destroy the acetie 

 acid and thus weaken the vinegar. 



A more rapid process is known as the Orleans process, 

 in which dilute solutions of alcohol are allowed to trickle 

 over beech wood shavings. This brings the liquid in inti- 

 mate contact with the air and after the shavings once be- 

 come seeded with proper bacterial growth, the conversion 

 of the alcohol solution to acetic acid occurs very rapidly. 



