RESISTANCE OF HARDWOODS TO CREOSOTE. 
31 
Table 3. — Results of penetrance tests on individual pieces — Continued. 
CHESTNUT — HE ARTWOOD . 
Mois- 
ture. 
Aver- 
age 
num- 
ber of 
rings 
per 
inch. 
Oven 
dry 
weight 
per 
cubic 
feet. 
Time of 
treat- 
ment. 
Time required 
to penetrate 
24 inches. 
Penetrations. 
Piece No. 
First 
end. 
Second 
end. 
Aver- 
age 
lon- 
gitu- 
dinal. 
Radial. 
Tangential. 
Aver- 
age. 
Maxi- 
mum. 
Aver- 
age. 
Maxi- 
mum. 
60 
Per ct . 
12 
13 
13 
Pounds. 
24.00 
28.80 
26.35 
Hours. 
k 
1 
2 
Min. 
Min. 
'bushes.. 
2.96 
5.14 
3.89 
Inches, 
0.15 
.20 
.20 
Inches. 
0.20 
.30 
.25 
Inches. 
0.20 
.20 
.15 
Inches. 
0.20 
61 
6.2 
6.0 
.30 
62 
.20 
4.00 
.18 
.25 
.18 
.23 
WHITE ASH— HEAETWOOD. 
66 
5.0 
20 ! 
16 I 
19 
35.50 
34.70 
32.85 
1" 
2 
4 
7 
4.81 
8.84 
10.83 
0.35 ! 
.50 
.52 | 
0.50 
.60 
.60 
0.25 
.50 
.45 
0.30 
67 
.60 
68 
10.6 
.50 
8.16 
.46 
1 
.57 
.40 
.47 
HICKORY— HEAETWOOD. 
6, 1 
2.9 
4 
5 
4 
51.60 
52.50 
52.20 
1 
2 
4.50 
4.83 
8.84 
0.25 
.30 
.60 
0.30 
.40 
.75 
0.30 
.25 
.60 
0.40 
.30 
70 
71 
.70 

6.06 
.38 
,48 
.38 
47 
YELLOW BIRCH— HEARTWOOD. 
30 
2.4 
12 
14 
16 
46.00 
44.50 
42.30 
i 
1 
2 
Lmmediatelv. 
Do. 
Do. 
8.17 
10.83 
12.16 
0.30 
.30 
.25 
0.30 
.35 
.30 
0.35 
.30 
.30 
0.40 
31 
.40 
32 
7.0 
.45 
Average . 
10.39 
.28 
.32 
.32 
42 
SILVER MAPLE — HEARTWOOD. 
33 . - .. 
1 
1 12 
36.24 
35. 70 
36.20 
1 
2 
. ... 
3.50 
3.56 
3.50 
0.20 
.30 
.40 
0.30 
.40 
.50 
0.30 
.40 
.40 
40 
34 
! 13 
60 
35 
11 
60 
s 

3.52 
.30 
.40 
.37 
.53 
SILVER MAPLE— SAPWOOD. 
36 ... 
M 
10 
10 
32.40 
33.17 
2 
7.17 
14.84 
11.50 
Comple 
do. 
do. 
37 
30 
60 
I 
38 --- 
11.17 
BASSWOOD— HEABTWOOD. 
39 
1 
22 | 30.30 | | 
20 i 29. 60 j 1" 
18 | 31.90 ' 2 
1 
7.00 
14.84 
14.50 
0.30 
.20 
.45 
0.45 
.20 
.50 
0.30 
.25 
.40 
0.50 
ft;::::-:::: 
12.3 
12 
7 
12 
7 
.30 
.40 
12.11 
.32 
.38 
.32 
.40 
1 !" ' ' 
1 Complete radial penetration was at least three-fourths inch, 
radial penetration they were nor inckided in the average. 
Where part of specimens showed complete 
