232 



On the strength of Pine and Spruce Timber. 



Table (C.) Experiments to ascertain the circumstances of fracture, giving the 



aggregate of the results for each kind of wood. 



o 



c 



o 





o 



3 



4 



a 



1 



o 



CO 



4 

 _5_ 

 4 

 _6_ 

 4 



T 



4 

 _8_ 

 4 U 



4 



10 

 4 



II 



4 



± ~ 



4 



4 a 



4 



-5_ 

 4 



- 6 _ 

 4 



J 



4 



-JL 

 4 



4 



1 

 4 



1 1 



4 



13 



4 



a 



2 o c 



-- 



:. 



« 

 o 





ff 



0.TI0 



0.887 



1.0G5 



t\ 1 1.242 



1.420 

 1.597 

 1.775 

 1.952 

 2.130 

 2.307 

 2.485 



0.710 

 0.887 

 1.065 

 1.242 

 1.420 

 1.597 

 1.775 

 1.952 

 2.130 

 n 2.307 



0.710 

 0.887 

 1.065 

 1.242 

 1.420 

 1.597 

 1.775 

 1.952 

 2.130 



b 



- t> 



88 U 



IS 3 



i ! ' 



a o 



• 



on q 



Q 



~ C 







w 



- 





4 





2.840 



i 



15 

 4 



-Li 



4 



c 



2.662 



2.485 

 d 



a * 



c c: 



2656 

 3217 

 3745 



4062 



i 



N 



g . 



'S w 



=3 ft 



2 H 





O 



as 



t- Q 



4266 

 4390 

 4560 

 4664 

 4775 

 4833 

 4893 



fcfi 



3 



3 



on 





664 

 561 



528 



2806 

 3505 

 3955 

 4443 

 4705 

 4877 

 5051 

 5185 

 5324 

 5441 



51S9 



3698 

 4611 

 5487 

 6268 

 7049 

 7593 

 8033 

 8429 

 8578 



5646 



e 



1)237 

 / 



317 

 204 

 124 

 170 

 104 

 111 

 58 

 60 



701 

 699 



450 

 488 

 262 

 172 

 174 



134 

 139 

 117 



924 

 913 



876 

 781 

 781 

 544 

 440 

 396 

 149 



g 



w C & 



— o > 



^ o- 2 S 



g <B c S 



> C - C 



•— *— c — 



— £* s- <y 



- a ^c — 



3 C 



> o ■- 



s - <* - 



c x 



II 



o 



w 



o 



C3 



So" 



c '^ X 



5 «r^ 



c z- 



j 



1.000 



c 



443 



1.101 



c 



482 



1.780 



c 



t 



S8 



