[SHUTT & CHARRON] MOISTURE IN HONEY 43 
(2) That drying in glass tubes on asbestos at atmospheric pres- 
sure between 70° C. and 75° C. also occasions a decomposition of the 
levulose of the honey. It will not suffice, therefore, if accurate results 
are to be obtained, simply to lower the temperature of the steam bath 
as in the second series of experiments. 
(3) That drying in platinum dishes on sand in a partial vacuum 
(8 inches) at a temperature of 60° C. to 70° C. for 24 hours to 48 
hours, vields results in close accord with those calculated from the 
specific gravity determinations — and that a more prolonged drying 
is undesirable, as such appears to induce a slight decomposition of the 
levulose. 
(4) That drying on asbestos yields much higher results than dry- 
ing on sand. This, apparently, is as true at 60° C. as at 70° C. (see 
Tables IV. and V.) and indicates a peculiar property or quality of the 
asbestos in inducing decomposition of the levulose. 
(5) That there were no differences of note between the results 
from drying in round and flat bottom platinum dishes. 
ON THE BEHAVIOUR OF MIXTURES (SOLUTIONS) OF DEXTROSE AND 
LEVULOSE UNDER VARYING CONDITIONS OF DRYING. 
As the saccharine matter in honey consists almost entirely of 
dextrose and levulose, existing in practically equal proportions, it was 
considered desirable to ascertain the effect of drying solutions of such 
a mixture, employing methods involving the same conditions of tem- 
perature and pressure as in the foregoing tests with honey. 
TABLE VI. MIxTURE OF DEXTROSE AND LEVULOSE, DRYING IN GLASS TUBES ON 
ASBESTOS IN STEAM BATH AT ATMOSPHERIC PRESSURE AT 98° C. 
AND 70° C., RESPECTIVELY. 
Dextrose, 5°0009 grams in 100 c.c. 
Levulose, 5°0038 grams in 100 c.c. 
10 c.c. used in each determination =1:°0005 grms. 



AT 98° C. AT 70° C. 

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