294 Experiments on the Strength of Wood. (APRIL, 
Weight.|Curvature. ‘Difference. No. 25. Weight. |Curvature. | Difference. No, 26. 
1411p] 0° 10’| 0° 10° 14 1b] 0° 09'| 0° 09! 
28 0 20} 0 10 28 0 20) 0 11 
42 0 39] 0 10 . 42 0 30] 0 10 
56 0 42] 0 12 56 | © 40] O 10 
70 0 54] O 12 10 0 52] 0 lg 
84 1 04| 0 10 84 1 04} 0 12 
98 } 165) "0: te 98 115 0. U1 
112 1. Shean d 112 1 26/ 0 1! 
126 1 40| 0 13 Fs 126 1 39| 0 13 5 
1440 | 1 54} O 14 = 1440 | 1 50] 0 II § 
154 2 06| O 12 oa 154 2 06} O 16 5 
168 2 24! 0 18 3 168 2 21] 0 15 3 
115 2 33} 0 09 : 182 2 2} 0 15 = 
182 2 42| 0 09 = 189 | 2 45] 0 09 = 
189 2 54| oO 12 = 196 | 3 00} O 15 as 
196 | 3 09| O 15 x 203 | 3 08] 0 08 2 
203 | 3 21/] 0 12 a 210 | 3 18} 0 10 a 
2i0 8 3st | 0 '16 217 3 36] 0 18 
217 3 54| 0 17 224 3 54] 0 18 
224 4 127'0 18 231 4 00{ 0 00 
231 4 36| 0 24 
238 5 18] 0 42 137°2 Mean 
245 0 00} 0 00 
147°8 Mean | 
Section of the Piece of Riga Fir out of which the 26 Pieces were 
cut, and the Mean Weight each Piece sustained. 
23 24 25 26 
143°5 | 97°6 | 147-8 | 137°2 
\7 18 19 20 21 22 
104°5 | 90°4 | 88°9 | 126-7] 143 | 136°2 
eee 
ll 12 13 14 15 16 
123°5| 91 56 98 | 121°9| 151-3 
5 6 7 8 9 10 
142 91 | 107-2 | 122-1 | 143°5 | 155°7 
1 2 3 4 
The average weight each piece would sustain, 116:01 1b, 
Mean of the greatest weight the pieces bore, 207°73 lb. 
