284 Experiments on the Strength of Wood. [APRIL, 
Weight. |Curvature. |Difference. Wo. 21. || Weient, Curvature. | Difference. No. 22. 
14] 0° 16'| ole! 141} 0° 15'| oot oS 
28 | 0 34] 0 18 5 28 | 0 30} 0 15 £ 
42 | 0 54{ 0 20 Bp 42 | 0 45] 0 15 EG 
56 | 1 12] O 18 3 56 | 1 02] 0 17 3 
70 | 1 33| O 2i 70 1 138] 0 16 
84 | 1 56{ 0 23 : 84 1 37/1 0 19 5 
98 | 2 19]! 0° 93 et. 98 | 1 57} 0/20 5 i. 
112 | 2 48] 0 29 hea } 112+ §2-19 fi ob 992 ss 
126 | 3 30] 0 42 Se 126] <2 5b Tov 32 ay 
140 | 4 24] O 54 25 140 | 2 30! 0 39 25 
154 | 6 12] IT 48 ae 154 | 4 30} 2 00 = 
161 | 7 00] O 48 2 161 | 5 241° 0) 54 25 
= 7 Sa 
90-4 Mean ane 90°4 Mean onl 
Weigh Curvature. Difference. No. 23. Weight.|Carvatare. Difference. | Wo. 24, 
14 1b} 0° 18’} 0° 18} 238 141] 0° 16} 0° 167] 2s 
a8 | OF S08 |. OF Sra s. e588 OF Se 
| 1 8| 0 | 2f Bol 4.16) 0: ade oe 
Cc es 9 
70 | 1 42] 0 94] && 70 | 1 37| 0 2t| $% 
se] 2G) 5) fe | 8] 3 lo By B83 
4 I 2 27 Sey 
rz] -3° 09 | 0 33 | = 3 rie ts ORO Sie 
126 | 4 06] O 57 per 126 | 4 00] O 54 s25 
140 | 5 00] 0 54] Se 133, | 4 24| 0 24) CFE 
147 5 30{ 0 30 235 sare ee 
e4.- 76°3 Mean Sea 
83:4 Mean mS a 
Weight.| Curvature. |Difference. No. 25. 
141] 0° 19’} 0° 19° 
28 O 44; O 25 Section of the piece of timber out of 
42 I 190) 026 which the 25 pieces were cut, and the 
56 1 36} 0 26 mean weight each piece bore. 
10 |.2 06 | O 30 
84 | 2 36] 0 30 
98 | 3 18| 0 42 1 2 3 4 5 
105 3 49 0 24 107 | 110°5 | 105°6 91 Sy 
112 | 4 O7| 0 2% 
116 | 4 30] O @B/ ¢ BO Bee 7 6 
119. 4 Ag 0 18 5 90°4 1019 122°1 | 118*3 | 109°6 
Igeyie 5, Od. O ley S 
i966 | & 2102] & 1 12 a 14 15 
130 | 5 48] 0 2) & a 
= 108:4/ 1282] 84 | 97-5 | 82-1 
87-3 Me = nae fd 
eh cs 20 | 19 | 18 | 17 | 16 
2 63:3 | 106-6 | 103-3 | 136-1 | 76:3 
Fa} 
Average weight each piece would sustain 
98:4 Ib. 
Mean of the greatest weight the pieces 
bore, 167°52 Ib. 
ee ———— 
ooo OO 
