Bui. 1061, U. S. Dept. of Agriculture 
Plate IX 
Fig. 1. — For the purpose of conserving the yield of gum, this operator is hanging 
cups on timber that has up to this time been worked by a crude boxing method 
Fig. 2. — Effect of deep chipping on longleaf pine about 50 years old in Clinch County, 
Ga. In strong winds the leverage is great and the breaking point is mostly at 
the top of the face. By careless burning a good many of these faces have been 
deadened. It is known that pine timber may be worked for turpentine, if it is 
done in a suitable manner, without causing great injury either to its value for 
other purposes or to its rate of growth 
