84 BULLETIN 983, U. S. DEPARTMENT OF AGRICULTURE. 



Table 2. — Acid yields. 



Cook. 



Acetic 



acid (per 



cent of 



original 



dry wood) 



Formic 

 acid (per 

 cent of 

 original 

 dry wood). 



Ratio of 



acetic acid 



to formic 



acid. 



Per cent of tota. vola- 

 tile acid in blow-off. 

 i 



Remarks. 





Acetic. 



Formic. 





21 



1.52 



0.239 



6. 36 to 1 



9.24 ■ 



9.00 



Data not complete. 



22 



23 



2.27 

 2.39 

 1.77 

 1.75 

 1.29 



.540 

 .059 

 .337 



.431 

 .171 



4. 20 to 1 

 40. 40 to 1 

 5. 25 to 1 

 4. 07 to 1 

 7. 55 to 1 



7.54 



8.70 



Blow-off open. 

 Do. 



24 



25 









26 



5.22 



9.95 



Do 



27 



Data not complete. 



28 







29 



1.29 

 1.38 

 1.755 

 1.67 

 1. 457 

 2.11 

 1.05 

 2.43 

 1.43 

 .87 

 1.33 

 1.56 

 1.416 

 1.55 

 1.51 

 1.69 

 1.67 

 2.36 

 2.62 

 2.97 

 1.97 

 1. 715 



.310 

 .642 

 .572 



1.090 

 . 355 

 .480 

 .443 

 .735 

 .253 

 .430 

 .056 

 .470 

 .430 

 .570 

 .160 

 .290 

 .790 



1. 450 

 .340 

 .469 

 . 230 

 .254 



4. 16 to 1 

 2. 15 to 1 

 3. 05 to 1 

 1.53 tol 



4. 10 to 1 

 4. 40 tol 

 2. 37 to 1 

 3. 31 to 1 



5. 65 to 1 

 2. 02 to 1 



23. 75 to 1 

 3. 32 to 1 

 3. 30 to 1 

 2. 72 tol 

 9. 44 to 1 



5. 82 to 1 

 2.11 tol 

 1.63 tol 



7. 71 to 1 



6. 33 to 1 



8. 57 to 1 

 6. 75 to 1 



5.78 

 11.70 



8.53 

 11.48 

 12.65 



7.91 

 16.30 



6.80 

 10.75 



7.48 



4.94 

 12.27 

 14.23 

 10.64 



6.01 

 24.55 



4.49 

 16. 28 



3.82 

 .47 





30 





31 





32 





33 





34 





35 





36 





37 





38 





39 



Blow-off open. 



40 



11.68 

 8.24 

 12.25 

 11.80 

 8.80 

 9.48 

 9.45 

 9.03 

 5.19 

 7.59 

 5.26 



8.14 

 13.50 

 12.80 

 • 23.40 

 9.40 

 8.26 

 9.75 

 12. 32 

 3.55 

 18.48 

 1.74 



41 





42 





43.. . 





44 





45 





46 





47 





48 





49 





50 





51 



Data not complete. 

 Do. 



52 

























Do. 



54 













Do. 



55 



2.14 



2.915 



3.53 



2.47 



2.16 



.440 

 1.492 

 .659 

 .399 

 .869 



4. 86 to 1 

 1. 95 to 1 



5. 36 to 1 

 6. 19 to 1 

 2. 49 tol 



13. 01 

 7.32 

 7.69 

 7.84 



10. 23 



23. 18 

 3.88 



14.79 

 6.2S 

 8.91 





56 





57 





58 





59 





60 



Do. 



61 



3.34 

 4.70 

 2.96 

 2.70 

 2.24 

 2.68 

 2.60 

 2.47 

 2.84 

 1.76 

 2.75 

 2.84 

 3.77 

 2.19 

 1.09 

 4.80 

 2.57 

 3.98 

 5.65 

 4.04 

 418 

 2.82 

 1.90 

 2.14 



.933 

 .706 

 .846 

 1.08 

 1.42 

 .626 

 1.44 

 1.18 

 .447 

 1.19 

 1.18 

 1.46 

 .512 

 .962 

 .079 

 .44"5 

 .789 

 .180 

 .634 

 .738 

 .700 

 .406 

 .667 

 1.59 



3. 58 to 1 



6. 66 to 1 



3. 50 to 1 

 2. 50 tol 

 1.58 tol 



4. 28 to 1 

 1.80 tol 

 2. 09 to 1 



7. 34 to 1 



1. 48 to 1 



2. 33 to 1 

 1.945 tol 



7. 36 to 1 



2. 28 to 1 

 13. 80 to 1 

 10. 75 to 1 



3. 26 to 1 

 22. 1 to 1 



8. 91 to 1 



5. 48 to 1 



5. 97 to 1 



6. 94 to 1 

 2. 83 to 1 

 1.35 tol 



7.39 



15. 53 



8.09 



9.06 



6.45 



14.87 



8.53 



18.11 



6.76 



7.53 



8.92 



7.72 



12.52 



7.92 



49.7 



15.65 



2.84 



11.55 



10.48 



11.02 



7.66 



7.79 



14.24 



9.63 



5.45 

 4.09 



11.82 

 5.93 

 7.75 



29. 75 

 6.95 

 7.38 

 3.25 

 2.32 

 6.59 

 9.31 

 4.26 

 8.15 



20.3 

 2.51 

 1.77 



10.9 

 4.09 

 9.42 

 6.30 



26.90 

 6.62 

 7.14 





62 



Birch. 





White pine, Idaho. 



64 



Red spruce. 



65 



Douglas fir, Montana. 



66 



White pine. 



67 



Longleaf pine. 



68 



Do. 



69 



Lodgepole pine. 



70 



Norway pine. 



71 



Red spruce. 



72 



Western larch. 



73 



Hard maple. 



74 



Douglas fir, Washington. 



Silver maple. 



Beech. 



75 



76 



77 



White oak. 



78 



Red oak. 



79 



Sycamore. 



80 



Slippery elm. 



81 



Red gum. 



82 



Cottonwood . 



83 



White spruce. 

 Western hemlock. 



86 







