182 Experiments on the Strength of Woodsy by Mr. Barlow, Jun. 



Table of the Strength and Elasticity of various Woods of 

 English and Foreign Grotvth. 



Names of Wood. 



m5 



H II 





Remarks, 



Acacia, English growth 



Ditto 



Oak, fast grown 



slow grown . . . 



fast grown 



— ^ slow grown . . . 



— — superior quality 



710 

 710 bore 



903 

 856 

 972 

 835 



756 



660 

 414 

 550 

 439 



896 



1195 1867 



1084 rope brok e, the 



999 

 677 

 999 

 943 



1447 



6801304 



ditto 



Tonquin C middle 1036|l388!2414 



Bean J outside 1 080 1 332 22'28! ^ 040625o{ 348 1 



5156250 1561 

 3234375 1058 

 4296875] 1561 

 3437500 1473 



piecelittle injured. 

 I Specimens sup- 

 Tplied byW. Wi- 

 I thers, Esq. 



J 



C Very fine speci- 

 7000000|226l J men; been in 



[_ store two years. 

 53125001 2037 been in store 16 yrs. 



10843750|3850-1 



Locust 



Bullet Tree. 

 Greenheart. . 

 Cabacally . . 



\ middle 972:10522116 8007812 3303 

 I outside 936 9402284 7343750 3568 

 I middle 1029Jl36o'l724 10625000J 2696 

 ^outside 1029 1332 1668j 10406250, 2606 

 5 middle 101513321892 10406250 2956 

 ^outsidcj 986 1388 1612 10843750^2562 

 9071 952 1668 743750012606 



African Oak, 



( middle 

 ( outside 

 r middle 

 J outside 



892, 940,1556 

 972 1168 1447 

 97211168 1657 



[^outside 



(middle 

 outside 

 middle 

 outside 

 Common < middle 



Birch ( outside 



< middle 



] middle 101512881643 



Ash. 



Elm 



Christiana 



J outside 

 J middle 

 \ outside 

 < middle 



Deal ( outside 



MemelDeal ^ '"'''!^!'^' ^90 



I outside 



972,10971643 

 648 775,1279 

 775! 915 

 6441027 

 831! 1433 

 800 11 64 

 8841304 

 660 1304 

 6601304 

 436: 772 

 324! 660 

 8561052 

 772 940 

 7861108 

 8561108 



633 

 648 

 669 

 792 

 630 

 727 

 702 

 554 

 532 

 698 

 680 



590 



7343750 2431 

 91328 12 2261 



9125000 

 10062500 

 8570312 

 6O54687 

 6054687 

 5031250 

 6492187 

 6250000 

 6908250 

 5156250 

 5156250 

 3406250 

 2531250 

 6687500 

 6031250 

 6140625 

 6687500 



2589 

 2567 

 2567 

 1967 

 1430 

 I6O4 

 2239 

 1820 



2037 



2037 

 2037 



1206 

 1031 

 1644 

 1480 

 1731 

 1731 



I Tills timber was 

 I sent from Bcr 



bice by Capt. 



Gipps, R. E 



J 



!Frora a very fine 

 timber long in 

 store. 



A long time in 

 store, very dry; 

 the same tree. 



) Dry, and of the 

 J same plank. 

 I Dry, and of the 

 f same tre<?. 

 f Dry, and of the 

 5 same deal. 

 1 Dry, and of the 

 f same deal. 



It is to be regretted that the results of the acacia were not 

 more particularly noted ; but not having in view at that time 

 to carry on so extensive a course of experiments, means were 

 not taken to ascertain its stiffness. The second specimen, after 

 the rope broke, was found but little injured by the experi- 

 ment, which certainly indicates considerable power of elasti- 

 city, 



