36 
BULLETIN 607, U. S. DEPARTMENT OF AGRICULTURE. 
Table 14. — Data upon the relative absorptions and penetrations into longleaf pine of 
five different commercial creosotes. 
Specimen 
No. 
Aver- 
age 
number 
annual 
rings 
per 
inch. 
Character of preservative. 
Specific 
gravity 
at60°C. 
Weight of 
specimen 
directly 
before 
treat- 
ment. 
Preserva- 
tive ab- 
sorbed. 
Aver- 
age 
longi- 
tudinal 
penetra- 
tion. 
V-l 
19.0 
8.0 
13.5 
19.0 
6.0 
12.5 
21.0 
5.0 
13.0 
20.0 
5.0 
12.5 
21.0 
5.0 
13.0 
Creosote No. 1 containing tar (estimated at 
about 10 per cent). 
1. 0483 
Pounds. 
3.493 
4.517 
Pounds. 
0.072 
.107 
.090 
.152 
.292 
.222 
.170 
.249 
.210 
.090 
.224 
.157 
.076 
.096 
.086 
Inches. 
3.58 
A D 8 
4.72 
Average.. 
V 4 
4.15 
Creosote No. 2 
1.0475 
3.118 
3.801 
6.58 
8.72 
Average.. 
V 7 
7.65 
1. 0576 
3.120 
4.291 
7.18 
A D 10 
8.66 
Average.. 
V-5 
7.92 
Creosote containing tar No. 4. (estimated at 
less than 5 per cent). 
1.071 
3.010 
3.976 
3.80 
A D 1 
7.60 
Average.. 
V 8 
5.70 
1.105 
3.078 
4.828 
3.73 
iD3 
5.26 
Average.. 
4.50 
Average moisture in specimens about 6 per cent. 
Table 15. — Shoiving the effect on absorption and penetration when varying mixtures of 
tar No. 4 and creosote No. 6 are used. 
Specimen 
No. 
Length. 
Breadth. 
Depth. 
Weight 
before 
treat- 
ment. 
Absorp- 
tion. 
Preservative used. 
Pressure 
per 
square 
inch. 
Time of 
treat- 
ment. 
D-l 
Inches. 
23.05 
24.20 
23.15 
Inches. 
3.50 
3.55 
3.50 
Inches. 
1.50 
1.55 
1.50 
Pounds. 
2.590 
2.780 
2.610 
Pounds. 
0.130 
.190 
.195 
Pounds. 
Hours. 
E-4 . 
80 
2 
F-5 .. 
.172 
23.15 
24.20 
23.05 
3.50 
3.50 
3.50 
1.50 
1.50 
1.50 
3.027 
2.698 
2.596 
D-2 
.070 
.166 
.138 
E-2... 
80 
F-3 
66| per cent creosote 
.125 
14.40 
24.20 
23.05 
3.50 
3.50 
3.50 
1.50 
1.50 
1.50 
1.923 
2.920 
2.607 
D-3 
.057 
.180 
.103 
E-G 
80 
2 
F-2 
Average . 
.113 
Specimen 
No. 
Area 
pene- 
trated. 
Average 
longitudi- 
nal pene- 
tration. 
Number 
of 
annual 
rings. 
Depth 
of hole. 
Preservative used. 
D-l 
Sq. in. 
10.8 
19.0 
13.1 
4.9 
9.1 
6.0 
14 
12 
14 
16 
12 
18 
17 
12 
18 
Inches. 
1.00 
.99 
1.00 
1.00 
1.00 
1.00 
1.00 
1.00 
1.00 
E-4 
F-5 
6.7 
8.4 
15.1 
9.0 
D-2 
3.7 
7.0 
4.0 
80 per cent creosote, 20 per cent tar. 
E-2 
F-3 
4.9 
7.5 
15.4 
8.0 
D-3 
3.2 
7.2 
3.5 
66| per cent creosote. 
33^ percent tar. 
E 6 
F-2... 
Average.. 
4.6 
I! wns not possible to get enough matched specimens from one stick for the three treatments, 
sticks were u ed and one specimen taken from each stick for each preservative. 
Average moisture 8 per cent to 10 per cent. 
Three 
