XV.] 
DANTZIC OAK. 
93 
Table XXXII.— Dantzic Oak. 
Transverse Experiments. 
Number 
of the 
specimen. 
Deflections. 
Total 
weight 
required 
to break 
each 
piece. 
I Specific 
gravity. 
Weight 
reduced 
to 
specific 
gravity 
1000. 
Weight 
required 
to break 
1 square 
inch. 
With the 
apparatus 
weighing 
390 lbs. 
After the 
weight 
was 
removed. 
At 
the crisis 
of 
breaking. 
Inches. 
Inch. 
Inches. 
lbs. 
lbs. 
I 
4-30 
•15 
5‘25 
474 
850 
558 
118-50 
2 
4'35 
•25 
5 '25 
466 
8l2 
573 
116-50 
3 
5-55 
•30 
6-85 
449 
817 
549 
112-25 
4 
575 
•25 
7 - oo 
456 
768 
592 
114-00 
5 
5-20 
•25 
7-85 
508 
897 
566 
127-00 
6 
4 ’85 
•25 
6‘55 
488 
872 
559 
I22 - 00 
Total . 
30 "OO 
1 "45 
3875 
2,841 
5016 
3397 
7IO-25 
Average 
5 '°° 
•24 
6-458 
473'5 
836 
566-16 
II8-37 
Remarks.— All the specimens broke rather short. 
Table XXXIII. 
Tensile Experiments. 
Number 
of the 
specimen. 
Dimensions of 
each piece. 
Specific 
gravity. 
Weight the 
piece broke 
with. 
Direct 
cohesion on 1 
square inch. 
7 
8 
9 
10 
Inches. 
| 2 X 2 X 30 | 
8l2 
817 
850 
872 
lbs. 
13.444 
14,276 
17,920 
21,840 
lbs. 
3.361 
3,569 
4,480 
5,460 
Total. . 
335 1 
67,480 
16,870 
Average . 
838 
16,870 
4,217 
