38 
BULLETIN 983, U. S. DEPARTMENT OE AGRICULTURE. 
There was a little more variation in the latter figures than in the 
alcohol values, because in the sugar data there was apparently a 
combination of variables in opposite directions. The 1.80 per cent 
500 
400 
5*300 
o 
o 
u 
o 
z 
o 
u 
200 
100 
1.40 
8^5 
35 
ADHD 
a:id 
,40 
n aci 
:bc~% acid 
Fig. 
18 20 22 24 50 55 60 65 
YIELD OF TOTAL SUGARS IN % OF TOTAL SUGARS 
°/o OF DRY WEIGHT OF WOOD FERMENTABLE 
7.— Series IV and IV a, showing variations in yield of total sugars and percentage of total sugars 
fermentable with varying concentrations of water at two different acid concentrations. 
acid curves show that there was a slight decrease in total sugars 
with decreasing amounts of water; but the percentage of fermentable 
sugars increased at the same time, with the result that the actual 
alcohol yield was practically constant. A larger number of cooks 
