YIELD OF TURPENTINE AND ROSIN. 9 
These figures show that double chipping will increase the net 
profits per crop by about $450. 
linerensestiommacditional yield... oo osc c so cc cae eneesesceseee css $1, 081. 30 
Mi xphaeoriOlucime Mew Method. <2. 0). kos 56. tect eee ele cee cece. 631. 60 
Serpe punter sca el Waeiere eh ae ke eine Ne eee a ia) LUN UNO au AN 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. 
Number | Number Cost per | Cost per ey 
Item. on on Price. | crop on | crop on | (oP 
double. | single. double. |standard.| Goh) = 
Chippin pees ssersiscccccc cc ccc streaks. . 70 38 1 $9.00 | $630.00 | $342.00 $288. 00 
Die Se eee ee sess oe ise oe = barrels. . 334 248 2.4@ | 133.60 99. 20 34. 40 
VAM CVO UI seecis wie Setsis/cio. ccc eis is = doe. 334 248 2.50 167. 00 124. 00 43.00 
Chapin Caen eee en as Soe ese doze: 149 90 2,40 59. 60 36. 90 23. 60 
ELA WMIMEYSCrA pe Ree ese 2 oe ee ese doze: 149 90 2,50 74. 50 45. 00 29. 50 
TRO TLS SNe SOE ee doses: 298 220 2,75 223.50 165. 00 58.50 
Interest and depreciation on extra houses, 
[OEE GRO Se orcs SSS Bae IG a SR len AT OROOM Roe eos es aie lee 28. 60 
Hxtra help atistilless-23- 2.25: DELAVCAI AS | rete Site ccllns cee 22000800 E2 aa eceae [eee eee 40. 00 
Cost of extra woodsman............ (Ui ee oe ER Ic 90000;|2 sie es Bvteaee ak 18. 00 
ANESsUT AH ACS amen Mae er ce uealelh SoS es [nec eee ke aiCioly eee ce eens cere 3. 00 
4 extra dip barrels.............- OX) E10) 0) allt ee tee ee DARIO WNC Yes ae esteem 10. 00 
IRGSMEM HTN 3 os os Sc he eke er rR a a | enna Vee oO ee a | 25. 00 20. 00 5.00 
Miscellaneous extras such as marketing,etc.|..........|...-.----- eae se VE ee a ee [te ees i a 50. 00 
MOET «sissy ae ad i ae Laeeaecit, aay ee a coe | 681.60 
i 
1 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. 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D. C. 
AT 
5 CENTS PER COPY 
V 
WASHINGTON : GOVERNMENT PRINTING OFFICE : 1917 
