Dr. Oscar Loew 65 
observed when the latter is protected for a 
time by the parchment envelope. The cost of 
transportation is in this case a little higher, 
but it does not come into consideration, as 
from $2 to $3 more has been realized per 
hundredweight for coffee thus treated, than for 
that cleaned in Central America. j 
In reviewing the so-called fermentation of 
coffee the conclusion is inevitable that alcoholic 
and acetic fermentations are not of direct 
benefit, but only indirect, inasmuch as heat is 
thereby produced which supports the action of 
a body (enzyme) furnished by the bacteria, 
which dissolves the adhesive substance between 
the parchment envelope and slimy layer. 
