RESISTANCE OF CONIFERS TO CREOSOTE INJECTION. 

 Table 3. — Proposed grouping of species for treatment. 



37 



Class. 



Species. 



Penetration. 



Longitu- 

 dinal. 



Radial. 



Absorp- 

 tion per 

 cubic 

 foot. 



I 



II 

 III 



IV 



Alpine fir, heartwood 



Yew, heartwood > 



Alpine fir, sapwood 



Douglas fir, heartwood 



Tamarack, heartwood ' 



White spruce, heartwood 2 



Westernlarch, heartwood 



Redwood, heartwood 



Noble fir, heartwood 



Eastern hemlock, heartwood 



Eastern hemlock, sapwood 



Redwood, sapwood 



Western hemlock, heartwood 



Western hemlock, sapwood 



White fir, sapwood 



Sitka spruce, sapwood 



White fir, heartwood 



Noble fir, sapwood 



Sitka spruce, heartwood 



Lodgepole pine, heartwood 



Spruce pine, heartwood 



Shortleaf pine, heartwood 



Engelmann spruce, heartwood 



Western yellow pine, heartwood 



Jack pine, heartwood 



Western yellow pine, California, heartwood 



Longleaf pine, heartwood 



Loblolly pine, heartwood 



Tamarack, sapwood 



Western larch , sapwood 



Jack pine, sapwood 



White spruce, sapwood 



Western yellow pine, California, sapwood . . 



Douglas fir, sapwood 



Engelmann spruce, sapwood 



Lodgepole pine, sapwood .■ 



Spruce pine, sapwood ' 



Western yellow pine, sapwood 



Longleaf pine, sapwood 



Shortleaf pine, sapwood 



Loblolly pine, sapwood 



In. 



1.73 

 3.42 

 5.50 

 .57 

 .87 

 3.27 

 3.17 

 4.58 

 6.07 

 6.66 

 6.75 

 6.83 

 7.42 

 8.27 

 9.00 

 9.33 

 10.05 

 10.33 

 12.00 

 .98 

 1.65 

 2.75 

 2.83 

 4.42 

 4.43 

 7.60 

 9.83 

 8.33 



In. 

 0.11 

 .08 

 .07 

 .05 

 .04 

 .09 

 .09 

 .16 

 .12 

 .07 

 .05 

 .13 

 .06 

 .09 

 .18 

 .10 

 .20 

 .18 

 .09 

 .63 

 .30 

 .35 

 .83 

 1.25 

 1.27 

 .72 

 .38 

 .85 



Pounds. 

 3.66 

 12.36 

 4.14 

 4.38 

 1.26 

 6.42 

 15.72 

 18.78 

 12.60 

 17.28 

 18.78 

 21.06 

 17.16 

 17.04 

 18.96 

 16.98 

 21.54 

 16.20 

 13.44 

 12.84 

 17.58 

 15.36 

 8.64 

 16.14 

 12.36 

 16.08 

 12.90 

 18.12 



Penetration not determined. 

 All except white spruce 

 known to treat very easily. 



4.50 

 6.10 

 6.83 

 9.67 



( 3 ) 



( 3 ) 



( 3 ) 



( 3 ) 



( 3 ) 



0.54 

 .43 

 .37 



( 3 ) 



15.12 

 14.46 

 22.20 

 31.56 

 29.46 

 28.74 

 34.20 

 20.76 

 20.40 



1 Sapwood not available for either penetrance or impregnation tests. 



2 Sapwood not available for penetrance tests. 



3 Complete. 



Table 4. — Results of penetrance tests on individual pieces. 

 YEW— HEARTWOOD. 





1 

 o 



o 



** -J 



3 n 

 w ft 



I! 

 3 G 



> 



u 



ft 

 +j 

 A^ 



.Sfo 



<D O 



&i 



"7 3 



a 



> 

 O 



4-3 

 C3 

 M 



it 



O 



g 



ft 



a 



<x> 



+3 

 0> 



60 

 cj 



M 

 © 

 > 

 < 



t-l 

 © 

 ft 



© . 

 © 3 



© 



> 



< 



Time re- 

 quired to 

 penetrate 12 

 inches. 



Penetrations. 



Piece No. 



Longitudi- 

 nal. 



Radial. 



Tangential. 





« el 



r ® 

 PR 



T3 

 OQ 



it 



© <© 



<S 3 



it 



© © 



as 



© © 

 fc. 60 



c3 3 



3 



Perct. 

 10.4 

 15.3 

 16.6 



21.0 

 16.0 

 26.0 



Lbs. 

 38.0 

 35.8 

 40.7 



Min. 

 30 

 60 

 120 



°F. 

 145 

 145 

 145 



Lbs. 



89 

 87 

 90 



Min. 

 G) 

 G) 

 G) 



Min. 

 G) 

 G) 

 G) 



Ins. 

 2.50 

 3.50 

 4.25 



Ins. 

 5.00 

 6.60 

 9.20 



7ns. 



0.08 

 .10 

 .06 



Ins. 



0.10 

 .10 

 .10 



7ns. 



0.06 

 .06 

 .06 



Ins. 

 0.08 



2 



.08 



1 



.10 







Average. . . 



14.1 



21.0 



38.2 



70 



145 



89 



G) 



G) 



3.42 



6.93 



.08 



.10 



.06 



.09 



1 Creosote did not penetrate to end of specimens. 



