MAPLE SUGAR. aye 
The southern maple-producing States, West Virginia, Indiana, 
Ohio, Pennsylvania, and Maryland, show higher figures than the 
northern States, Vermont, New Hampshire, Maine, and Michigan. 
This relationship becomes more evident when the figures are inserted 
in a map of the United States in the region from which the samples 
come. In the western group, West Virginia, Maryland, Pennsy]l- 
vania, Ohio, Indiana, and Michigan, the sectional differences are 
very marked. With the exception of the Maryland figures, the drop 
in all determinations as one goes north is very marked. From West 
EXPLANATION. 
Az FER CENT TOTAL ASY7. 
4A = FER CENT INSOLUBLE AS. 
L= WINTON LEAD NUMBER. 
(4= MALIC ACID VALUE 
Fig. 2.—Map showing effect of environment on analytical results of maple sugar, United States. 
Virginia to Michigan there is a drop of 0.47 per cent in ash, of 0.25 
per cent in insoluble ash, of 1.47 i Winton lead number and 1.16 
in Ross lead number, and of 0.55 in the malic acid value. In the 
eastern section, comprising New York, Massachusetts, Vermont, New 
Hampshire, and Maine, the drop as one goes north is not so great. 
From Massachusetts to Maine, the drop in total ash is 0.08 per 
cent, in insoluble ash none, in Winton lead number 0.24, in Ross 
lead number none, and in malic acid value 0.17. 
It is evident, then, that environment plays some part in the com- 
position of maple sugar. 
