YIELD OF TURPENTINE AND ROSIN. 



9 



These figures show that double chipping will increase the net 

 profits per crop by about $450. 



Increase from additional yield $1, 081. 30 



Extra cost of using new method 631. 60 



Net gain 449. 70 



At present prices the total net gain from a 50-crop place would be 

 about $22,000. 



Many of the large lumber companies tap their timber from two to 

 three years before cutting. Frequently turpentining is barely a 

 year ahead of cutting. It is in these cases that double chipping 

 should be especially advantageous. 



Table 7. — Added cost per crop of double chipping as conducted on the experimental area. 



Item. 



Number 



on 

 double. 



Number 



on 

 single. 



Price. 



Cost per 

 crop on 

 double. 



Cost per 

 crop on 

 standard. 



Extra 

 cost per 

 crop on 

 double. 



Chipping streaks. 



Dipping barrels. 



Hauling gum do 



Scraping do 



Hauling scrape do 



Rosin do 



Interest and depreciation on extra houses, 



per crop 



Extra help at still per year. 



Cost of extra woodsman do 



4 extra hacks 



4 extra dip barrels per crop. 



Recruiting 



Miscellaneous extras such as marketing,etc 



70 

 334 

 334 

 149 

 149 

 298 



38 

 248 

 248 

 90 

 90 

 220 



1S9.00 

 2.48 

 2.50 

 2.40 

 2.50 

 2.75 



110. 00 



2, 000. 00 



900. 00 



.75 



2.50 



$630. 00 

 133. 60 

 167. 00 

 59.60 

 74.50 

 223.50 



$342. 00 

 99.20 



124. 00 

 36.00 

 4.5. 00 



165. 00 



25.00 



Total . 



$288. 00 

 34.40 

 43.00 

 23.60 

 29.50 

 58.50 



28.60 

 40.00 

 18.00 



3.00 

 10.00 



5.00 

 50.00 



631. 60 



i Per streak. 



2 Per barrel. 



SUMMARY. 



1. Double chipping produced, in the first year's operation, 31 per 

 cent more turpentine and 36 per cent more rosin than standard chip- 

 ping. The height of the face at the end of the season was approxi- 

 mately the same as that of the standard face. 



2. The net gain from double chipping was about $450 per crop. 



3. Narrow chipping produced 17.5 per cent less turpentine and 

 rosin than standard chipping ; the faces were only one-half as high as 

 the standard at the end of the season. 



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