KIsn.TS OK i . i \II-HKSSI.IN T1STS OH NKU imt >.i..\s nit ' ' 



I _(, . I :;:; < Illlll 3980 3"i ."> Sli,i,-l,i ^nm, ; failed 



by crippling' ill kii'ii 



r'hn'iiL'li rumor 

 II in-. In. in I-IH] mill 

 1-16 in. nut ul -ijinirc ; 

 i." appreciable rllci-l. 



1.09 X I- ; U X 59.0 3211 :U.I Straight grain ; ill ivr 



or four knots ; -<c(i.-on 

 crack on one side. Crip- 

 pled at knot 20 ins. from 

 ml anil season crack 

 opening, 



4. IS X 4.22 X 59.75 3190 :t. r > I Four knots, two each 



IK ins from ends, seve- 

 ral oilier sinull knots ; 

 grain not straight ; large 

 season crack. Failed by 

 shearing and bursting 

 open at season crack 

 across annular rings. 



2.4li X - Til X 00.5 4619 34.5 Straight grain : 



raj knots. Failed by 

 crippling at knot 12 in-. 

 fri in end. 



KKSULTS OF COMPRESSION TESTS ON 



OLD DOUGLAS FIR. 



>!.= !- 



Dimension in ins. 15 = c- -- 



Length-. g~ | i,5 Kemark*. 



>* ee a- .SP t. 



aa o a, a. * 



J - f - 



2.21 X 2.23 X 9-l"> 8644 35.9 Grain straight and 



clear; one old side with 

 reason crack. Bulged 

 along season crack, and 

 crippled. 



3.45 X 2.78 X 9.65 6465 32.5 All fresh sides ; 



straight anil parallel 

 grain; oneedge strained 

 from bo!t. Crippled all 

 over. 



3.41 X 2.7S X 9.65 7247 33.4 One old side; grain 



straight and parallel. 

 Crippled near one end. 



3 41 X 2. SO X 9-70 5C!6 33.2 All fresh sides ; grain 



straight and parallel ; 

 one edge strained fron: 

 bolt; 1 in. season crack. 

 Crippled one-fourth tlie 

 way down, slightly help- 

 ed liy season crack. 



3.38 X 2.7S X 0.155 6979 34.5 One old side; grain 



straight and parallel. 

 Crippled at one end, 

 slightly aided by season 

 crack. 



2.7(5 X 3.76 X S.64 7235 35. G One old side; iron 



stain at one end j season 

 crack ; grain straight 

 and parallel, Crippled 

 at 3 ins. from end. 



2.S3 X 3.S1 X 9.75 6577 32.9 (),. O ld side; grain 



straight and parallel. 

 Crippled near centre. 



4.15 X 4.64 X 11.32 6660 35.70 Knot 5 ins. from end ; 



next face, knots 1J ins. 

 and 4 ins. from same 

 end: small pin knot and 

 -eason crack on third 

 side. Crippled through 

 knots. 



4.35 X 4.67 X 11.95 7900 47.25 Clear and straight ; 



very full of resin ; some 

 sea?on cracks ; crippled 

 at one end. 



:i40 X 3.47 X 12.00 5085 31.7 Grain straight, but 



slightly curly ; three 

 fresh sides ; old side 

 crushed by tie ; slightly 

 rotten under tie ; crip 

 pled at small defect near 

 one end . 



3.45 X 3.45 X 12.00 5218 30.88 Groin parallel ; ciush- 



ed and rotten for a depth 

 of j in. under tie; two 

 adjacent sides new. 

 Crippled at rotten part 

 65 near one end. 



