1905 



FORESTRY AND IRRIGATION 



335 



plete records being kept of the yield 

 from the "boxed" and "cupped" halves 

 of the crop, together with careful 

 studies of the condition of the trees in 

 each. 



Messrs. Powell, Bullard & Co. have 

 courteouslv furnished the results of 



the second and third years of opera- 

 tion. Summaries of these figures are 

 given in Tables I, II, and III. They 

 show that the cupped trees yielded 

 $1,284.04 per crop, or over 30 per cent, 

 more than the boxed trees. 



TABLE I. Spirits of turpentine from half crops. 



TABLE II. Xct soles of rosin from half crops. 



TABLE III. Summary of gain from 

 cupped half crops. 



Total value of products from three year* of <>]>< rt'>n. 



Cupped half crop $2,688.55 



Boxed half crop 2,0lii.;>:5 



Gain from cupped half crop (i-Jl-VO^ $1,284.04 per crop. 



