46 ROYAL SOCIETY OF CANADA 
The results of the work on levulose solutions agree very well on 
the whole with those obtained on solutions of honey. It has already 
been shown that drying the latter from 24 hours to 48 hours at 60° C. 
tc 70° C., in a partial vacuum on sand, gave percentages in close accord 
with those obtained from the specific gravity determinations. The 
investigations with levulose solutions prove that a temperature of 
60° C., in a partial vacuum using sand, furnished figures approxim- 
ating the amounts weighed out. It is probable that a temperature 
of 79° C. could be safely used if the pressure were reduced to, say, 
6 or 8 inches, but with the partial vacuum that we were able to main- 
tain it is evident that the drying temperature should be as close as 
possible to 60° C. © 
