322 
ANALYSES 
7. White Elm (Ulmus americana). 
Tree sound. Diameter three feet from the base, 28 inches; ditto fourteen feet from the base, 25i- inches. 
Mean thickness of the bark, § inch. Whole length of the tree, 111 feet. Number of layers fourteen 
feet from the base, 208. Average thickness of each layer, 0-05769 of an inch. Thickness of layers 
quite uniform. From 80 to 85 outside layers taken for outside wood; the remaining layers, for inside 
wood. 
First Specimen. 
Bark of trunk. 
Outside wood. 
Bark of twigs. 
Wood of twigs 
Potash 
3-79 
5-82 
9-61 
Soda ... 
1-65 
*6-53 
18-41 
Chloride of sodium - 
trace. 
0-07 
Sulphuric acid 
0-14 
12-02 
2-80 
3-98 
Carbonic acid 
39-44 
24-72 
26-07 
Lime 
27-46 
16-92 
14-77 
Magnesia 
13-10 
3-00 
2-40 
Phosphate of peroxide of 
iron, \ 
Phosphate of lime 
- f 3-40 
24-50 
22-35 
Phosphate of magnesia 
. ) 
Organic matter 
2-00 
1-50 
Insoluble silica 
1-75 
0-50 
Coal ... 
0-30 
Moisture ... 
3-10 
85-86 
12-02 
95-82 
97-49 
Second Specimen. 
Sap wood. 
Hear! wood. Outside bark. 
Inside bark. 
Potash .... 
15-85 
S-64 5-32 
1-17 
Soda .... 
7-64 
20-49 3-22 
2-17 
Chlorine 
0-74 
0-09 1-21 
0-05 
Sulphuric acid 
0-12 
0-14 0-10 
0-04 
Phosphate of peroxide of iron, 
1-82 
1-05 4-00 
Phosphate of lime 
l 14-53 
2-75 19-55 
3-775 
Phosphate of magnesia - ) 
Carbonic acid 
29-51 
28-225 13-26 
42-515 
Lime .... 
20-08 
22-635 30-26 
42-495 
Magnesia 
4-72 
10-08 4-84 
S-16 
Silica .... 
2-00 
3-25 12-15 
1-25 
Soluble silica ... 
Organic matter 
1-45 
1-60 
1-80 4-32 
0-40 
98-46 S. 
99-115 S. 99-59 S. 
102-025 
