STUDIES ON FLAX BETTING. 47 
Table 7. 
In % of dry matter. 
Before 
retting. 
End of 
first period. 
End of 
middle 
End of 
last period. 
Cellulose 
Betted stem. 
22.70 
24.43 
24.43 
24.77 
On the basis of control 
stem. 
22.70 
22.42 
21.53 
21.06 
Loss by retting. 
- 
0.28 
1.17 
1.64 
Pentosan 
Betted stem. 
22.69 
- 
21.18 
On the basis of control 
stem. 
22.89 
- 
18.02 
Loss by retting. 
- 
- 
- 
4.67 
Gummy substance. ... 
Betted stem. 
17.85 
- 
14.94 
On the basis of control 
stem. 
17.85 
- 
- 
12.71 
Loss by retting. 
- 
- 
5.14 
Pectin compounds 
Betted stem. 
0.72 
- 
- 
0.42 
On the basis of control 
stem. 
0.72 
- 
0.36 
Loss by retting. 
- 
- 
- 
0.36 
Glucose 
Betted stem. 
0.95 
- 
0.0014 
On the basis of control 
stem. 
0.95 
- 
- 
0.0012 
Loss by retting. 
- 
- 
- 
0.948 
Tannin 
Betted stem. 
1.79 
0.60 
0.37 
non 
On the basis of control 
stem. 
1.79 
0.55 
0.33 
non 
Loss by retting. 
- 
1.24 
1.46 
1.79 
