RESULTS OF COMPRESSION TESTS ON NEW DOUGLAS FIR. Continual. 



3.95 X 4.33 X 32.28 4479 30.1 A great many knots 



on each end and at 

 various other points. 

 Failed at a large knot 

 12 ins. from an end. 

 Also heavy season 

 cracks. 



3.98 X 4.10 X 28.65 5735 34.3 One 'd side badly 



seasoned and injured by 

 usage ; aleo knots near 

 each end ; also a small 

 pin knot near centre at 

 which piece failed by 

 crippling and bursting of 

 fibres. 



3.93 X 4.30 X 31.95 5124 32.6 Heavy knots near 



centre. Crippled at 

 knots. 



4.11 X 4.92 X 31.85 7309 35.1 C .lear and straight 



grained; except slight 

 wave 1 ft. from end due 

 to vicinity of knot. Fail- 

 ed at this point by direct 

 crippling. 



4.22 X 4.92 X 30.84 7107 39.2 Clear and straight 



grained. Crippled 8 ins. 

 from end. 



2.33 X 2.84 X 28.00 6496 31.7 Clear and straight 



grained. Failed by bend- 

 ing 10 ins. from end. 



2.27 X 2.27 X 3:;. 7 5 570H 36.0 Clear, straight grain; 



ed. Failed bv bendin^- 

 sbort specimen failed 

 at 30,000 M.S. 



3.9t! X 4.18 X 35.2.") 5015 36.(! Several knots; crip. 



pled atone running from 

 corner to corner 12 ins. 

 from one end. 



4.20 X 4.50 X iib.OO 5905 35.6 Grain out of parallel ; 



clear. Failed by burst- 

 ing and shearing along 

 season cracks. 



3.33 X 3.40 X 33.55 7615 33.6 Clear, straight grain. 



Crippled hfar one 6ud. 



3.30 X 3.38 X 33.54 7444 35.6 Clear tm.l stiaighi 



grained. Failed by crip- 

 pling ins. fiom end. 



3.35 X 3.40 X 33.50 5338 35.4 Large knot pas.- in- 



through centre side to 

 side; piece split end to 

 end through this knot. 



3.30 X 3.40 X 33.55 5909 35.6 Knot near centre, also 



two small pin knots near 

 end. Crippled through 

 pin knots. 



3.30 X 4.00 X 33.50 541 6 35.2 Large knot near cen- 



tre passing from side to 

 side. Split from end to 

 end through knot. 



3.30 X 4.00 X 33.50 5023 32.8 Large mass of knots 



near middle. Crippled 



4.25 X 5.75 x 35 5729 



425 X 5.87 X 41.75 4090 



4 X 48 4469 32.75 Grain parallel ; knot 



at centre at corner; other 

 knots near end ; centre 

 of tree 12 ins. away. 

 Bent at centre at knots 

 concave to a high cornet-. 



2.80 X 4.06X40.02 ,1330 38.1 Straight grain ; small 



knot 14 ins. from end. 

 Failed by bending in 



11] * 



4.10 X 4.24 X 41>3 3866 36.3 ""straight grain ; three 



knots. Crippled at knot 

 12 ins. from end ; no 



4.25X4.25X54.95 3389 34.6 t grain , many 



knots. Burst in two 

 opposite directions at 

 knots 11 ins. from one 

 end and 12 ins. from 

 other end. 



1.99 X 2.64 X 52.62 5105 34.3 Straight grain; clear; 



bent at centre. 

 64 



