OF THE ASH OF FOREST TREES. 
321 
5. Swamp White Oak (Quercus bicolor ). 
Potash - 
_ 
Bark. 
0-459 
Outside wood 
20-49 
Inside wood 
14-79 
Soda ... 
- 
trace. 
3-15 
3-69 
Chloride of sodium 
Sulphuric acid 
Carbonic acid 
0-295 
40-335 
32-919 
34-61 
Lime 
52-26 
30-23 
35-87 
Magnesia 
0-25 
0-50 
0-51 
Phosphates 
3-50 
5-20 
6-30 
Organic matter 
Silica ... 
2*13 
2-00 
1-50 
2-70 
0-50 
Coal - 
2-50 
4-00 
1-60 
Moisture 
103-729 
97-999 
2-60 
103-17 
6. White Oak (Quercus alba ). 
Ash obtained from the green wood. 
Sap wood. 
Heart wood. 
Wood of twigs. 
Bark of trunk. 
Bark of twigs. 
Potash 
13-41 
9-68 
9-74 
0-25 
1-27 
Soda - * - 
0-52 
5-03 
6-89 
2-57 
4-05 
Sodium ... 
2-78 
0-39 
0-16 
0-08 
0-08 
Chlorine ... 
4-24 
0-47 
0-25 
0-12 
0-13 
Sulphuric acid 
0-12 
0-26 
0-08 
0-03 
trace. 
Phosphate of peroxide of 
iron, 
0-60 
Phosphate of lime 
[32-25 
13-30 
23-60 
10-10 
14-15 
Phosphate of magnesia 
) 
Carbonic acid 
8-95 
19-29 
17-55 
29-80 
30-33 
Lime - 
30-85 
43-21 
34-10 
54-89 
47-72 
Magnesia - 
0-36 
0-25 
0-50 
0-20 
0-20 
Silica - 
0-21 
0-88 
0-55 
0-25 
0-65 
Soluble silica 
0-80 
0-30 
0-60 
0-25 
0-65 
Organic matter - 
5-70 
7-10 
5-90 
1-16 
1 -52 
100-18 S. 
100-06 S. 
99-99 S. 
100-05 S. 
100-00 S. 
The oak grew in the immediate neighborhood of Albany, upon a stiff clay known as the 
Albany clay. 
[Agricultural Report'—Vol. ii.] ' 41 
