36 



BULLETIN 101, U. S. DEPARTMENT OF AGRICULTURE. 



In general, this species was very easy to penetrate in both heart and sap 

 wood. There was no great differences between the appearance of this species 

 after treatment and that of longleaf and shortleaf pines. 



The average longitudinal penetration in the heartwood was about 20 times 

 the average radial and 80 times the average tangential penetration. 



Table 2. — Order of species in respect to longitudinal and radial penetrations 



and absorptions. 



Species. 



Penetrance tests. 



fa s 





3 u 



O £) 00 



t~ - « 



sSf 



<73 







Order of species 

 in respect to — 



c3 



II 



£1 



K P. 



>>.S 



#1 



Douglas fir 



Tamarack 



Lodgepole pine 



Spruce pine 



Alpine fir 



Shortleaf pine 



Engelmann spruce 



Western larch 



White spruce 



Yew 



Western yellow pine, 



Montana 



Jack pine 



Redwood 



Alpine fir 



Noble fir 



Douglas fir 



Eastern hemlock 



Do 



Redwood 



Western hemlock 



Western yellow pine, 



California. 



Western hemlock 



Loblollvpine 



White fir 



Sitka spruce 



Lodgepole pine 



Longleaf pine 



White fir 



Noble fir 



Western yellow pine, 



California. 



Sitka spruce 



Spruce pine 



Engelmann spruce 



Shortleaf pine 



Longleaf pine 



Western yellow 



Montana. 

 Loblolly pine. . . 

 White spruce... 

 Jack pine 



pine, 



Heart. 



-do... 



..do... 

 ...do... 



..do... 



..do... 



..do... 

 ...do... 

 ...do... 

 ...do.., 



..do.. 



...do.., 

 ...do... 

 Sap . . 

 Heart 

 Sap.. 

 Heart 

 Sap . . 

 ...do.. 

 Heart 

 ...do.. 



Sap.. 

 Heart 

 Sap.. 

 ...do.. 

 ...do.. 

 Heart 

 ...do.. 

 Sap.. 

 ...do.. 



Heart 



asu 



...do.. 

 ...do.. 

 ...do.. 



...do.. 

 ...do.. 

 ...do.. 



Min. 

 70 

 70 

 52 

 70 

 70 

 70 

 75 

 70 

 70 

 70 

 70 



70 

 65 

 70 

 70 

 45 

 70 

 70 

 61 



70 

 60 

 65 

 45 

 21 

 70 

 70 

 70 

 15 



70 

 3 



2 

 2 



1 



n 



Min. 



In. 



0.57 

 .87 

 .98 



1.65 



1.73 

 12.75 



15 



*to40 

 16 

 24 

 3 

 10 



23 

 5 



4.43 

 4.58 

 5.50 

 5.83 

 6.10 



6.87 

 7.42 

 7.60 



8.27 

 8.33 

 9.00 

 9.33 



10.05 

 10.33 

 4.50 



12.00 



*12.00 



6.83 



412.00 



4 12.00 

 4 12.00 



4 12.00 



In. 



0.05 

 .04 

 .63 

 .30 

 .11 

 .35 



09 



.08 



1.25 



1.27 

 .16 

 .07 

 .12 

 .43 

 .07 

 .05 

 .13 

 .06 

 .72 



.09 

 .85 

 .18 

 .10 

 ( 2 ) 

 .38 

 .20 

 .18 

 3.54 



Lbs. 



4.38 



1.26 

 12.84 

 17.58 



3.66 

 15.36 



8.64 

 15.72 



6.42 

 12.36 

 16.14 



12.36 



18.78 

 4.14 

 12.60 

 14.46 

 17.28 

 18.78 

 21.06 

 17.16 

 16.08 



17.04 

 18.12 

 18.96 

 16.98 

 31.56 

 12.90 

 21.54 

 16.20 

 15.12 



13.44 



29.46 

 22.20 

 20.76 

 34.20 

 28.74 



20.40 

 8.22 

 12.42 



Lbs. 



32.5 

 33.5 

 25.1 

 34.4 

 25.2 

 39.7 

 27.2 

 34.1 

 25.6 

 38.8 

 25.0 



28.8 

 20.5 

 22.7 

 24.1 

 30.9 

 23.4 

 20.3 

 20.2 

 30.8 



32.0 

 35.9 

 24.1 

 19.7 

 23.6 

 39.2 

 23.4 

 24.8 

 29.8 



18.5 



30.8 

 30.9 

 35.3 

 25.2 

 25.9 



37.3 



26.1 

 30.7 



1 See discussion on page 33 of Appendix. 



2 Complete. Since the radial penetration of lodgepole, spruce, shortleaf, longleaf, and western yellow 

 (Montana), and loblolly pine was complete in each case, the relative order of these species is not significant. 



3 Treated for 15 minutes only and penetrated same distance as heartwood in an equal time. 

 * Complete. 



Note. — When penetration was complete it was not more than 12 inches, as the specimens could be pene- 

 trated a total distance longitudinally of only 12 inches. Complete radial penetration varied in different 

 specimens. The minimum for complete penetration radially was 1 inch, and the maximum 1.50 inches. 

 This depended upon the direction of the annual rings in reference to the surface of the specimen. 



