xu] FRENCH OAK. 81 
TABLE XXIV.—FRENCH OAK. 
Transverse Experiments. 
| : 
t Deflections. Total Weight . 
: z Weight 
weight 2s, |reduced + 
Nuabe * | With the | After the At | required 3 2 to as gone 
specimen. | 2PParatus weight | the crisis | to break a | specific e sauare 
“| weighing was of, each to | gravity Fie eh 
390 lbs. | removed. | breaking. | piece. Io00. 
Inches. Inch. Inches. Ibs. Ibs. 
I 1°50 ‘00 4°35 720 | 966 745 | 180°00 
2 1°35 *05 7°00 939 | 977 | 952 | 232°50 
3 1°50 05 6°05 gor | 983 QI6 | 225°25 
4 1°55 “10 5°50 895 | 992 | 902 | 223°75 
5 1°65 ‘00 7700 915 | 979 | 934 | 228°75 
6 1°35 05 6"10 904 | 962 | 939 | 226°00 
Total .} 8-90 25 36°00 | 5,265 |5859 | 5388 |1316°25 
Average| 1°483 ‘O41 6‘00 877°5| 976°5| 898 | 219°375 
The average of six other specimens, of equal quality to the above, gave— 
7-12 -1°583 "125 77583 831" 1082-768 =—-207°75 
The mean of the whole— 
1533. 083. 6"'79t «= 854s T02g"5 833 213°562 
REMARKS.—AII the specimens broke with a fibrous fracture fully 10 inches in length. 
TABLE XXV. 
Tensile Experiments. 
Number Dj ion oF Srecif, Weight the Direct 
mite, | cachpiece. | greviry. | Plets broke |cohesion ce 
Inches. Ibs, Ibs, 
13 966 21,280 5,320 
14 979 40,040 10,010 
15 903 39,208 9,802 
16 2238 962 27,432 6,858 
17 977 33,460 8,365 
18 992 33,040 8,260 
Total. . oe 5859 194,460 48,615 
Average. ies 976°5 32,410 8, 102 
