100 



MAPLE-SAP SIRUP. 



practically the same. In per cent of total ash, figured to dry sub- 

 stance, the Canada samples are 0.02 per cent higher than those from 

 the States adjoining and 0.07 per cent lower than the United States 

 average. The average insoluble ash of Canada is 0.05 per cent 

 higher than that of the States adjacent and 0.01 per cent higher than 

 the figure for the United States. The alkalinities and malic acid 

 values compare favorably. The basic lead number for the Canadian 

 samples is about halfway between the other two while the neutral 

 lead number is lower. There seems to be no reason why there should 

 be any difference between Canadian maple sirup and that made 

 across the border in the United States, yet an idea prevails that 

 Canadian sirup is stronger than the domestic product. 



COMPARISON OF SIRUPS FROM THE VARIOUS STATES. 



For further comparison of the effect of environment on the quality 

 of the product the average analyses of the samples from the several 

 States have been tabulated and show slight variations in some cases 

 and rather marked ones in others. In the tabulation the States are 

 arranged according to latitude, the ones farther south standing first. 



Average analyses of samples by States. 



From this table it is seen that some of the constituents decrease as 

 the more northern latitudes are reached. In general, this is true of 

 the total ash and the lead number and to a less degree of the malic 

 acid value. There are a few exceptions to this general tendency 

 which may be due to the altitude of the sugar bush, to the soil, or to 

 the exposure. 



Soil data were collected from the individual makers, but on com- 

 piling them no distinctions that would admit of any classification 

 were found. No doubt the kind of soil on which the bush is located 

 influences, to a slight extent, the ash content and possibly the malic- 



