YIELDS FROM DISTILLATION OF CERTAIN HARDWOODS. 
13 
COMPARISON OF VALUES. 
The combined value of commercial alcohol and acetate of lime 
from the various forms of material per cord of wood of the various 
species is given in Table 6, which is computed from the yields given 
in Table 4. These values are according to the prevailing prices for 
1911-13. 1 
In judging the value of the different forms and species for dis- 
tillation, the yields under commercial conditions must be .consid- 
ered, and therefore the value of the acetate per cord of wood of 
different species is computed on a basis of two-thirds of the yields 
shown. The value of the alcohol is based on the experimental 
yields, since these are at most only slightly higher than average 
commercial yields. Tar and gas are not included in the computa- 
tion of the value of products, because they are relatively unimpor- 
tant and are commonly used as fuel at the plant. Charcoal is one 
of the valuable commercial products, but is not included because 
there are no definite data from which the values might be computed. 
The charcoal, produced by the experimental method has not been 
subjected to temperatures as high as in commercial practice, and 
therefore contains more volatile matter. Although the relation be- 
tween the yields obtained from different species in the experiments 
might be the same as between those obtained by commercial meth- 
ods, there is no information on the quality of the charcoal from 
different species. Also, charcoal is usually sold by volume, and since 
no data are available on the weight per bushel for that produced 
from different species, the yields can not be computed to commer- 
cial units. 
Table 6. — Values of commercial alcohol and acetate 
per cord of wood of various species. 1 
Locality. 
Values of wood alcohol and acetate of lime during period 1911-13. 2 
Species. 
Heart- 
wood. 
Slab 
wood. 
Lum- 
ber. 
Mean 
heart- 
wood 
and 
slab 
wood. 
Other forms. 
Aver- 
age 
lumber 
and 
heart- 
wood. 
Weight 
of 
cord, 3 
(15 per 
cent 
mois- 
ture) . 
$8.08 
8.72 
7.92 
7.73 
8.08 
8.31 
6.92 
4.28 
$8.41 
8.89 
8.22 
7.59 
7.74 
7.80 
6.50 
4.11 
$8.38 
"'s'.ii' 
""i.i2 
""9."5i" 
7.70 
$8.26 
8.81 
8.07 
7.66 
7.91 
8.06 
6.71 
4.19 
Sapwood,$9.10._ 
$8.23 
Pounds. 
3,785 
Do 
Pennsylvania.. . 
Wisconsin 
Pennsylvania. .. 
Wisconsin 
Pennsylvania... 
Missouri 
New Jersey 
3. 785 
Birch 
8.04 
3, C00 
Do 
3, €00 
Maple 
7.90 
3,875 
Do 
3,875 
Red gum 
3.300 
Limbs, $4.89 
""9."5i" 
7.61 
2,520 
4,590 
Oak 
do 
7.52 
6.76 
4 6.04 
7.30 
7.08 
7.03 
7.41 
6.92 
6.59 
4,320 
Do 
Arkansas 
Missouri . 
4,320 
Tupelo 
Limbs, $7.10 
3.510 
1 The market price of cruae alcohol is fairly stable, but acetate of lime fluctuates considerably from 
time to time. For this reason the relative value of the different species, from the standpoint of value of 
products, may vary from the calculations indicated. 
2 The weights per cord are derived as explained on p. — . 
3 At 26 cents per gallon for alcohol and $2.50 per hundredweight for acetate of lime. The acetate is com- 
puted from two-thirds the yields given in Table 4. 
* One determination only". 
