RESISTANCE OF HARDWOODS TO CREOSOTE. 



33 



Table 3. — Results of penetrance tests on individual pieces — Continued. 



TUPELO GUM— HEAETWOOD. 





Mois- 

 ture. 



Aver- 

 age 

 num- " 

 ber of 

 rings 

 per 

 inch. 



Oven 

 dry- 

 weight 

 per 

 cubic 

 feet. 



Time of 

 treat- 

 ment. 



Time required 



to penetrate 



24 inches. 



Penetrations. 



Piece No. 



First 

 end. 



Second 

 end. 



Aver- 

 age 

 lon- 

 gitu- 

 dinal. 



Radial. 



Tangential. 





Aver- 

 age. 



Maxi- 

 mum. 



Aver- 

 age. 



Maxi- 

 mum. 



24 



Per ct. 



11 

 10 

 12 



Pounds. 

 36.45 

 32.20 

 35.07 



Hours. 



Min. 



Min. 



Inches. 

 10.83 

 8.08 

 10. 83 . 



Inches. 

 Comph 



Inches. 

 te 1 



Inches. 



Inches. 



25 



19.5 



1 



2 



|"" 









26 



20 1 

























9.91 

























TUPELO GUM— SAPWOOD. 



Average. 



3.0 

 0.5 



31.40 

 32.53 



8.17 

 16.50 



12.33 



Complete 1 

 do.... 



BLACK WILLOW— HEAETWl (OD. 



71 



0.6 

 1.8 



4 

 4 

 4 



29.05 

 29.09 

 28.62 



i 







4.83 

 6.28 

 3.50 



0.25 



0.30 



0.30 J 



1 



0.40 



72 



1 

 2 







Complete 1 !. 



do 





73. . 





















4.87 























1 1 



SUGAR MAPLE— LIEARTWOOD. 



74 



3.2 



8.5 



22 

 18 



43.75 

 43.15 



i 



I 



3.83 

 6.84 



0. 15 

 .25 | 



0.20 

 .30 



0.20 

 .20 



0.30 



75 



1" 





.32 











Average. 



5.33 



.20 J 



.25 



.20 



.31 









r 





"WHITE OAK— HEAETWOOD. 



77 





16 

 17 

 16 





i 







1.50 

 2.62 

 2.83 



0.07 

 .07 

 .10 



0.1 



0.1 

 0.1 





78 





1 

 2 









79... 









i 

















2.32 



.08 



0.1 



s 



















RED CUM— HEARTWOOP. 



80 



8.0 





40.12 

 38. 63 

 38.32 



1* 



2 







1.28 

 1.50 

 1.28 



0.07 

 .15 

 .05 



0.10 

 .02 

 .05 



0.10 



.08 

 .10 



0.20 



81 







.15 



82 



15.2 









.10 











Average. 





1.35 



.09 



.12 



.09 



.15 





1 











EED GUM— SAPWOOD. 



54 





14 

 14 

 16 



38.58 

 35.70 

 35.70 



i 

 1 

 2 



3 

 1 

 2 



8 

 3 

 10 



16.16 

 10.21 

 12. 50 



0.35 1 0.40 



0.40 



0.50 



55 



1.8 





56 



.30 



.50 



.40 



.60 











12.96 



.32 



.45 



.40 



.55 



















1 Complete radial penetration was at least three-fourths inch, 

 plete radial penetration they were not included in the average. 



Where part of specimens showed com- 



