424 On the Resistance of Solids. 
TABLE IL—WOODS. 
a 
2s. Asi. 
So els oy ee . 
Woods, 23 2) 25°.1 O'S Authority, 
mSelese| ag 
ale cit heen 
Lance-wood ..,. ¢} 2°621 |24,696 | 1:022 | Layman, Nich. Journal, xxxv. 54. 
Locust-tree ......]2°185 |20,582 Muschenb. Intr. ad Phil. Nat, i. 415. 
Jujube (Ziziphus) | 2-008 |18,915 idem, i ig i, 414, 
Asu (Fraxinus.) 
Red, seasoned .. }}1°899 |17,892]| 0°812 | Layman, Nich Journal, xxxv. 54. 
Ash ...0 0... 0:26 1804 117,000 Barlow, Rees’s Cyclop. art. Strength. 
White, seasoned t 1:509 |14,220| 0°685 | Layman, Nich. Journal, xxxv. 54. 
PAS ease Nee 1-274 112,000 Muschenb. Ency, Brit , art, Strength. 
Oax (Quercus). ‘ 
Oaks Sse ics t} 1:891 |1'7,820 Emerson’s Mechanics,114. Ed. 1773. 
—, highest result $} 1-861 117,532 Banks, Gregory’s Mechan. i, 127, 
Sie w aclew elev 1-836 |1'7,300 Muschenb. Ency. Brit., art. Strength. 
og cut 4 years {}1°707 |16,079 Duhamel, Transport du Bois, p, 212. 
Provence,season.*!|1°559 |14,685 | 1:164 | Idem, 434, 
English, seasoned, 1°509 114,220] 0:880 | Layman, Nich. Jour. XXXV. 54, 
Oakrss Sear 1-481 113,951 Rondelet, L’Art de Batir, iv. 65. 
French, season.t 1] 1-450 113,639 Duhamel, Trans. du Bois, 213. 
Provence,season.||{{ 1-444 |13,602 | 0-828 | [dem, 
ne ey 423, 
Provence,season. } 
young ....¢ 1°563 |12,839 | 0-771 | Idem, ae Bi 230. 
Oak, dry ...... $4 1°274 |12,000 Muller, Pract. Fortification, 76. 
Baltic, seasoned {} 1-211 |11,412 | 0-673 | Layman, Nich. Jour. xxxv. 54. 
Oak, lowest result}|1°146 110,800 Banks, Gregory’s Mech. i. 127. 
pes Soe cee tlanlON 410.495 Belidor, Scien. des Ingen.3i9. Ed.1813. 
English, .... .. ¢11:085 |10,224 Beaufoy, Aun. Phil. ix. 286, Ex. No. 4. 
Oak. igice ack +) 17076 {10,136 Belidor, Scien. des Ing. 321. Ed.1813. 
Brepch;’ pia veason: t]1°060 | 9,985 1 1068 | Buffon, Mém. de l’Acad. Paris, 1741, 
White American, 
99. 
cea a 1°009 | 9,504 Layman, Nich, Jour, xxxv. 54. Lan? 
Oak, ...5e--00% $1109 | 95504 Barlow, Rees’s Cyclo, art. Strength. 
French, unseason. ¢ 0-960 | 9,045 Buffon§, Mem. de P Acad, Paris, 1741, 
[328. 
Oak ............]0°955 | 9,000 | 0-774 | Barlow, Rees’s Cy clop. art. Strength. 
English..... -+. {]0°936 | 8,820 Beanfoy, Aon. of Phil, ix. 297. Ex.10 
Dantzic........ $]0°818 | 7,704 {dem, ue 233. Ex. 19° 
EF 
Tee 5 1°880 |17,709 ‘ Muschenb. Intro, ad Phil, Nat. i. 415. 
Arbutus, ee 1-845 |17,3'79 
icLacees ‘ CC ae laceereemin, | | 
Orange (Goran #5 4 2 
tium) .... . ts7OR [16,616 idem, 
1-629 115,345 
Bay uta? PL547 114,572 
to. .{1-085 [10,220 oe 
* Its colour brown; and it was hard and large-veined. 
+ This specimen lay six months in water after it was cut, and was afterwards 
dried, When the trial was made it had been cut four years. 
|| Middle-aged timber, fine-veined, light and pliant. 
§ To find the distance between the supports, in Buffon’s experiments, I de- 
ducted one-twelfth of the length of the piece, according to the notice he has given 
in the beginning of his memoir ; the two results given are the highest and lowest 
from the eight-feet lengths, 
TABLE 
