TABLE I. Spirits of turpentine from half crops. 



TABLE II. Net sales of rosin from half crops. 



TABLE III. Summary of gain from cupped half crops. 



Total value of products from three years of operation. 



Cupped half crop $2,688.55 



Boxed half crop 2,046.53 



Gain from cupped half crop 642. 02=f 1, 284.04 per crop. 



CONDITION OF TREES. 



At regular intervals during the three years of operation, careful 

 study was made of the condition of the trees in each half of the crop. 

 The results of these studies by years follow: 



' TABLE IV. Record of down and of dead trees. 



Of the 44 trees blown down in the cupped half of the crop during 

 the three years of operation, only 8 fell because they were being 

 turpentined. These 8 were small trees on which too deep incisions 



