262 TIMBER AND TIMBER TREES.  [cuap. 
deck and planking purposes (for which it was judged to 
be especially suitable), in place of Baltic Fir and Pine 
timber. 
It disappointed, however, the expectations of the 
officers, as it was soon found to shrink so excessively, 
that it was impossible to keep it weather or water-tight ; 
in consequence of this it was removed from the ship. 
The remains of the parcel therefore passed into conver- 
sion for the most common and ordinary services, and, 
of the board produced, much was used for berthing in 
the timber sheds. It stood the test of exposure in such 
situations for fully eight years without showing any signs 
of decay, but exhibited a disposition to warp and shrink 
far exceeding that of any other wood in present use in 
carpentry. 
The subjoined Table, No. CXXXIX., shows that the 
Russian Larch is slightly deficient in transverse strength, 
as compared with the Firs and Pines; but, otherwise, it 
is above their average. 
TABLE CXXXIX.—LARcH (RUSSIAN), 
Transverse Experiments. 
Deflections. Sir . Weight Weight 
weight pb [reduced 
Neer | with the | Afterthe | At re wired ‘oe to Gee 
specimen /ghing | “was [ef | cach | [gravity] * sare 
390 lbs, | removed. | breaking. | Piece. 600. 
Inches. Inch. Inches, Ibs. Ibs. 
I 125 "15 4'5 743 | 688 | 648 | 185-75 
2 15 "15 Ke) 714 697 ors 178°50 
3 15 “00 4°75 708 645 65 177°00 
4 1°75 "25 3°85 504 618 489 | 126°00 
5 75 “15 4°15 568 647 527 | 14200 
6 1°65 "35 375 | 519 | 583 | 534| 129°75 
Total .| 9°40 105 26°00 | 3756 |3878 | 3471 | 939°00 
Average| 1°566 "175 4°33 626 646°3| 578 | 156°5 
ReMARKS.—All broke with a moderate length of fracture. 
