CouiU.y >'uivt service, V- 8. Dcpt. Agr. 



FIG. 134. THE CUP AND GUTTER 

 SYSTEM OF BOXING PINE TREES 

 FOR TURPENTINE 



After Foret Service, V. 8. Dtp*. ART. 



Flo. 135. A CROSS-SECTION OF AN OAK 

 LOG, SHOWING ANNUAL RINGS 



! ' ;. ! ' .- in 



FIG. 136. A YOUNG LONG-LEAF PINE 

 The sets of branches indicate the age of the top 

 06 



