tae 
& i UNITED STATES DEPARTMENT OF AGRICULTURE 
a BULLETIN No. 1003 
Contribution from the Bureau of me eo 
W.G. CAMPBELL, Acting Chief 
And the University of Idaho, A.H. UPHAM, President 
December 5, 1921 — 
r, THE Bey Lavin OF STUMPWooD ||. 
| AND LOGGING WASTE OF WESTERN 
YELLOW PINE | 
‘s re 
iw let ML, . abs 
is ~ te 
By a 
M. G. DONK, Assistant Chemist 
Leather and Paper Laboratory, Bureau of Chemistry 
C. H. SHATTUCK, Professor of Forestry, and W. D. MARSHALL 
Research Fellow, Forestry Department, University of Idaho 
| 
i 
i 
CONTENTS 
Page Page 
Importance of western yellow pine . . 1 | Feasibility of distilling western yellow 
Distribution of western yellow pine . . 2 DINE 5h sell debra! Visca st eubed chiens sia 46 
Purpose of investigation. ....... 13 | Relation of wood distillation to land 
Taking samples............. 15 CLEATING orc) 3 face) 6 shay mae aa et olan 51. 
Distillation of samples ...... .. 22 | Small, semi-portable wood-distilling i 
_ Crude products of retort distillation. . 31 °| plants. ........-...... 53 
Products obtained in refining crude Use of oil for ore flotation. ...... 54 
MISE oles Ce.) Cs Fs 37 | Refining crude woed turpentine. ... 56 
Calculation of yields of refined turpen- SummMary)'. -oHs0 6) sho Sida sane 67 
tine and pine oil Ny Mead a eS eee Pe at Literature cited. ..... weatiia oteteatls 69 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1921 
