PRODUCING SODA PULP FROM ASPEN. 
Table 11. — ■ Yields of experimental pulps. 
51 
Cook 
No. 
Yields (bone-dry basis). 
Yields of 
un- 
bleached 
pulp 
(bone- 
dry basis) 
per solid 
cord. 
Yields of 
bleached 
pulp 
(air-dry 
basis) 
per solid 
cord. 
Kind of test. 
Total 
crude 
pulp. 
Screen- 
ings. 
Screened 
un- 
bleached 
pulp. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
Ul 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
Per cent. 
48.01 
50.34 
49.31 
46.48 
50.01 
44.67 
52.63 
55.57 
58. 30 
50.36 
Per cent. 
0.05 
.03 
.02 
.01 
.01 
.01 
.03 
.01 
13.02 
.08 
Per cent. 
47.96 
50.31 
49.29 
46.47 
50.00 
44.66 
52.60 
55.56 
45.28 
50.28 
Pounds. 
1,279 
1,342 
1,314 
1,240 
1,334 
1,191 
1,402 
1,482 
1,208 
1,341 
Pounds. 
1,406 
1,475 
1,444 
1,372 
Group II 
1,467 
1,308 
1,533 
1,625 
1,315 
1,487 
Group III 
51.72 
52. 49 
53.70 
55.58 
58.12 
48.67 
50.02 
52.55 
54.97 
54. 85 
57.88 
49.18 
51.61 
50.78 
53.58 
.04 
.05 
.09 
.44 
19.00 
.01 
.02 
.04 
.02 
.09 
.13 
.02 
.01 
.01 
.03 
51.68 
52.44 
53.61 
55.14 
39.12 
48.66 
50.00 
52.51 
54.95 
54.76 
57.75 
49.16 
51.60 
50.77 
53.55 
1,378 
1,400 
1,429 
1,471 
1,043 
1,298 
1,335 
1,400 
1,465 
1,460 
1,541 
1,311 
1,376 
1,354 
1,429 
1,524 
1,524 
1,558 
1,586 
1,109 
1,422 
Group IV 
1,461 
1,530 
1,612 
1,595 
1,666 
1,432 
1,521 
1,483 
1,573 
Cook spoiled, due to defect in apparatus. 
