Table 1. — Analyses of springwood and summerwood of some American woods (continued' 
(Besults in percentages on oven-dry (105° C.) samples.) 
Species 
: Sample 
:Mois- 
: Solubilil 
;y in 
:Ace- 
:Meth- 
:Fento- 
•Lignin 
:Cellu- 
:Fentosans 
• t i r 
: oxyl 
:Cold: Hot: 1$ 
:acid 
cellu- 
: water 
' NaOH 
lose 
"..Tiite ash, 
sp. gr.O. 71 
Sapwood 
Springwood: 
Sumraerwood 
3O6 
307 
U.52 
3ol 
k.ok 
2,90 
^•95 
3.57 
17.71 
1^.57 
2.76 
2. U9 
6.3U 
6.01 
2O.3U 
19-35 
25.57 
23.52 
53.56 
57.66 
19.50 
16.97 
White ash, : 
sp. gr.O. 81 : 
Sapwood : 
Springwood: 
Sumraerwood: 
310 : 
311 : 
5-3^ ■ 
3.5^ ! 
7.35" 
6.85 
8.38: 
7.3^; 
22.95 
19. 6U 
2.7U 
2.1+1 
5. SO: 
5.7^ 
20.17. 
20.52. 
23.9^ 
20.83 
52.3^ 
57.^7 
18. 56 
1^.33 
R950 
-k- 
