■RESISTANCE" OF HARDWOODS TO CREOSOTE. 
33 
Table 3. — Results of penetrance tests on individual pieces — Continued. 
TUPELO GUM— HEARTWOOD. 
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 Xo. 
First 
end. 
Second 
end. 
Aver- 
age 
lon- 
gitu- 
dinal. 
Radial. 
Tangential. 
Aver- 
age.- 
Maxi- 
mum. 
Aver- 
age. 
Maxi- 
mum. 
24 
Per ct. 
11 
10 
12 
Pounds. 
36.45 
32.20 
35.07 
Hours. 
1* 
2 
Min. 
Min. 
Inch es. 
10. 83 
8.08 
10.83 
Inches. 
Complc 
Inches. 
te 1 
Inches. 
Inches. 
25 
19.5 
26 
20 
9.91 
TUPELO GUM— SAFWOOD. 
27 
3.0 
0.5 
15 
14 
31.40 
32.53 
i 
1 
20 
22 
22 
20 
8.17 
16.50 
Complete 1 ...... 
i 
28 
do. 
| 
12.33 
1 
BLACK WILLOW— HEARTWOOD. 
71 
0.6 
1.8 
4 
4 
4 
29.05 
29.09 
28.62 
j 
4.83 
6.28 
3.50 
0.25 
Complc 
do. 
0.30 
te 1 
0.30 
40 
72 
1 
2 
73 
4.87 
SUGAR MAPLE— HEARTWOOD. 
74 
3.2 
8.5 
22 
18 
43.75 
43.15 
1 
.. 1 
3.83 
6.84 
0.15 
.25 
0.20 
.30 
0.20 
.20 
0.30 
32 
75 
5.33 
.20 
.25 
. 20 ai 
) 
" 
WHITE OAK — HEARTWOOD. 
77 
16 
17 
16 
i 
1 
2 
1.50 
2.62 
2.83 
0.07 
.07 
.10 
0.1 
0.1 
0.1 
1 
78 
79 
2.32 
.08 
1 

RED GUM— HEARTWOOD. 
80 
8.0 
40.12 
3S. 63 
38.32 
i 
1 
2 
1.28 
1.50 
1.28 
0.07 
.15 
.05 
0.10 
.02 
.05 
0.10 
.08 
.10 
0.20 
.15 
10 
81 1. 
82 
i5.2 
Average. 
1.35 
.09 
.12 
.09 
.15 
1 
RED GUM— SAPWOOD. 
54 
14 
14 
16 
38.58 
35.70 
35.70 
i 
1 
2 
3 
1 
2 
8 
3 
10 
16.16 
10.21 
12.50 
0. 35 0. 40 
0.40 
0.50 
55 
1.8 
56 
.30 
.50 
.40 
60 
Average . 
12.96 
.32 
.45 
.40 
.- 
1 Complete radial penetration was at least three-fourths inch. Where part of specimens showed com- 
plete radial penetration they were not included in the average. 
