84 
BULLETIN 983, U. S. DEPARTMENT OF AGRICULTURE. 
Table 2. —Acid yields. 
Cook. 
Acetic 
acid (per 
cent of 
original 
dry wood) 
Formic 
acid (per 
cent of 
original 
dry wood) . 
Ratio of 
acetic acid 
to formic 
acid. 
Per cent of tota. vola- 
tile acid in blow-off. 
Remarks. • 
Acetic. 
Formic. 
21 
1.52 
0.239 
6. 36 to 1 
9.24 
9.00 
Data not complete. 
22 
23 
2.27 
2.39 
1.77 
1.75 
1.29 
.540 
.059 
.337 
.431 
.171 
4. 20 to 1 
40. 40 to 1 
5. 25 to 1 
4. 07 to 1 
7. 55 to 1 
7.54 
8.70 
Blow-off open. 
Do. 
24 
25 
26 
5.22 
9.95 
Do 
27 
Data not complete. 
28 
29 
1.29 
1.38 
1.755 
1.67 
1.457 
2.11 
1.05 
2.43 
1.43 
.87 
1.33 
1.56 
1. 416 
1.51 
1.69 
1.67 
2.36 
2.62 
2.97 
1.97 
1.715 
.310 
.642 
.572 
1.090 
.355 
.480 
.443 
.735 
.253 
.430 
.056 
.470 
.430 
.160 
.290 
.790 
1.450 
.340 
.469 
.230 
.254 
4. 16 to 1 
2. 15 to 1 
3. 05 to 1 
1.53tol 
4. 10 to 1 
4. 40 to 1 
2. 37 to 1 
3. 31 to 1 
5. 65 to 1 
2. Q2 to 1 
23. 75 to 1 
3. 32 to 1 
3. 30 to 1 
9. 44 to 1 
5. 82 to 1 
2. 11 to 1 
1.63tol 
7. 71 to 1 
6. 33 to 1 
8. 57 to 1 
6. 75 to 1 
5.78 
11.70 
8.53 
11.48 
12.65 
7.91 
16.30 
6.80 
10.75 
7.48 
4.94 
1227 
14.23 
10.64 
6.01 
24.55 
4.49 
16.28 
3.82 
.47 
30 
31 
~ 
32 
33 
34 
35 
36 
37 
38 
39 
Blow-off open. 
40 
11.68 
8.24 
11.80 
8.80 
9.48 
9.45 
9.03 
5.19 
7.59 
5.26 
8.14 
13.50 
23.40 
9.40 
8.26 
9.75 
12, 32 
3.55 
18.48 
1.74 
41 
42 
43 
44 
45 
46 
47 
48 
49 
50 
51 
Data not complete. 
Do. 
52 
53 
Do. 
54 
Do. 
55 
2.14 
2.915 
3.53 
2.47 
2.16 
.440 
1.492 
.659 
.399 
.869 
4. 86 to 1 
1.95tol 
5. 36 to 1 
6. 19 to 1 
2. 49 to 1 
13. 01 
7.32 
7.69 
7.84 
10.23 
23.18 
3.88 
14.79 
6.28 
8.91 
56 
57 
58 
59 
- 
60 
Do. 
61 
3.34 
4.70 
2.96 
2.70 
2.24 
2.68 
2.60 
2.47 
2.84 
1.76 
2.75 
2.84 
3.77 
2.19 
1.09 
4.80 
2.57 
3.98 
5.65 
4.04 
4.18 
2.82 
1.90 
2.14 
.933 
.706 
.846 
1.08 
1.42 
.626 
1.44 
1.18 
.447 
1.19 
1.18 
1.46 
.512 
.962 
.079 
.445 
.789 
.180 
.634 
.738 
.700 
.406 
.667 
1.59 
3. 58 to 1 
6. 66 to 1 
3. 50 to 1 
2. 50 to 1 
1.58tol 
4. 28 to 1 
1. 80 to 1 
2. 09 to 1 
7. 34 to 1 
1. 48 to 1 
2. 33 to 1 
1. 945 to 1 
7. 36 to 1 
2. 28 to 1 
13. 80 to 1 
10. 75 to 1 
3. 26 to 1 
22. 1 to 1 
8. 91 to 1 
5. 48 to 1 
5. 97 to 1 
6. 94 to 1 
2. 83 to 1 
1.35tol 
7.39 
15.53 
8.09 
9.06 
6.45 
14.87 
8.53 
18.11 
6.76 
7.53 
8.92 
7.72 
12.52 
7.92 
49.7 
15.65 
2.84 
11.55 
10.48 
11.02 
7.66 
7.79 
14.24 
9.63 
5.45 
4.09 
11.82 
5.93 
7.75 
29.75 
6.95 
7.38 
3.25 
2.32 
6.59 
9.31 
4.26 
8.15 
20.3 
2.51 
1.77 
10.9 
4.09 
9.42 
6.30 
26.90 
6.62 
7.14 
62 
Birch. 
63 
White pine, Idaho. 
64 
Red spruce. 
65... 
Douglas fir, Montana. 
White pine. 
66 
67 
Longleaf pine. 
Do. 
68 
69 
Lodgepole pine. 
70 
Norway pine. 
71 
Red spruce. 
72 
Western larch. 
73 
Hard maple. 
Douglas fir. Washington. 
Silver maple. 
Beech. 
74 
75 
76 
77 
White oak. 
78 
Red oak. 
79 
Sveamore. 
80 
Slippery elm. 
Red srurn. 
81..... 
82 
Cottonwood. 
83 
White spruce. 
86 
Western hemlock. 
r 
♦ 
