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THE ROYAL SOCIETY OF CANADA 



The grams of acetic acid are calculated from the titration of the 

 distillate after the removal of the tar and before neutralization for 

 the removal of the methyl alcohol. By this method all volatile acids 

 with a boiling point under 130°C. are calculated as acetic acid. The 

 extent of the error due to this cause was not determined. 



The methyl alcohol was determined by observing the gravity of 

 the distillate after neutralization and a careful fractionation with a 

 good distilling column. By this method the acetone is estimated as 

 methyl alcohol as their gravities are similar. It has been shown by 

 Benson and Darrin (loc. cit.) that the acetone may be as high as 

 twenty per cent, in the case of Douglas fir. 



Experimental D.\ta 



Results Calculated to a Cord Basis 



Pounds of acetate of lime per cord 



Gallons (Imperial) of 85% methyl alcohol per cord 



Gallons of tar per cord 



Pounds of Charcoal 



Results 



The accompanying table shows the detailed results of the difïerent 

 runs with the additional table giving the results as calculated for a 

 cord of 3,000 pounds in the case of alder and 3,200 pounds in the case 



