YIELD OF TURPENTINE AND ROSIN. 



The scrape was distilled the day following collection, but even in 

 this case a comparison of the grades of rosin may be erroneous. At 

 the time of distillation the price of turpentine was high, while the 

 higher grades of rosin differed little in value, so that the quality of 

 the rosin sometimes was sacrificed for a higher yield of turpentine. 



Table 2. — Yield of crude gum, scrape, rosin, and turpentine from experimental plots. 



Plot. 



Standard chipping 



Total. 



Narrow chipping. 



Num- 

 ber of 

 cups. 



6,142 



6,881 



Total 



Double chipping. 



Total. 



3,049 



Yield 



of 

 gum. 



Lbs. 

 63,926 



61, 062 



Tur- 

 pen- 

 tine 

 from 

 gum. 



Gal. 

 1,709.5 



1,618 



Rosin from 

 gum. 



50, 697 



48, 224 



32, 174 



Grade. 

 WW 

 WG 



M 



K 



I 



WW 

 WG 



N 



M 



K 



I 



WW 

 WG 



N 



M 



K 



I 



H 



Yield 



of 

 scrape. 



Lbs. 

 16,545 



14,515 



13,615 



Tur- 

 pen- 

 tine 

 from 

 scrape. 



Gal. 

 293 



235 



209 



Rosin from 

 scrape. 



Lbs. 

 3,633 

 7,164 

 3,328 



14,125 



2,970 

 3,485 

 2,970 

 2,225 



11,650 



1,165 

 10, 427 



Grade. 

 N 

 M 

 K 



Total 

 rosin. 



Lbs. 

 64,822 



59,874 



43, 766 



Total 

 tur- 

 pen- 

 tine. 



Gal. 

 2,002.5 



1,853 



1,301 



Table 3. 



■ Yield of crude gum, scrape, rosin, and turpentine per crop of 10 ,000 faces on 

 each of the experimental plots. 







Tur- 







Tur- 











Plot. 



Yield 

 of 



pen- 

 tine 



Rosin from 



Yield 

 of 



pen- 

 tine 



Rosin 



from 



Total 



Total 

 tur- 





gum. 



from 



gum. 



scrape. 



from 



scrape. 



rosin. 



pen- 

 tine. 







gum. 







scrape. 











Lbs. 



Gal. 



Lbs. 



Grade. 



Lbs. 



Gal. 



Lbs. 



Grade. 



Lbs. 



Gal. 



Standard chipping. . 



104,080 



2,783 



31, 951 

 11, 205 

 21,070 

 4,037 

 14, 279 



WW 

 WG 



M 



K 



I 



26, 936 



477 



5,915 

 11, 664 

 5,418 



N 

 M 

 K 



N 



105, 539 

 87,014 



3,260 



Total 



82,542 



22, 997 







88, 740 



2,351 



WW 



21,094 



342 





Narrow chipping 



21, 067 



4,316 



2,693 









8,364 



WG 







5,065 



M 





■ 









10, 785 



N 







4,316 



K 













9,345 



M 







3,234 



H 













8,227 



K 





















12, 294 



I 









N 



143, 542 





Total 



70, 082 



16, 931 







140, 003 



3,582 



WW 



44, 654 



685 





Double chipping 



34, 936 



3,821 



4,267 









9,380 



WG 







34, 198 



M 













11, 807 



N 





















11,168 



M 





















8,363 



K 





















12, 030 



I 





















17, 839 



H 















Total 



105,523 



38,019 



















