MAPLE SUGAR. 



29 



average is 1 per cent, with the same extremes. Grouping the indi- 

 vidual determinations for ash by States and by 0.05 and 0.1 per cent 

 differences, the results in Table XIII are obtained. 



Table XIII. — Total ash content of sugar, by locality. 





Number of samples. 



Per- 

 cent- 



Ash content. 



Ind. 



Me. 



Md. 



Mass. 



Mich. 



N.H. 



N.Y. 



Ohio. 



Pa. 



Vt. 



W. 



Va. 



Can- 

 ada. 



Total. 



age of 

 sam- 

 ples. 



Per cent. 

 0.00 to 0.76 

















il 

 2 

 5 

 3 

 7 

 6 

 2 

 3 

 1 









i 1 

 3 

 7 

 7 

 7 



10 

 11 

 15 

 9 

 4 

 3 

 2 



31 



2 



33 



56 



39 



56 



51 



48 



36 



22 



6 



9' 



3 



2 



0.7 



.77 to .79 





1 



1 

 2 



1 

 3 

 1 

 3 

 1 



1 



4 

 4 

 5 



4 

 4 

 2 

 6 



4 

 2 



1 



4 

 2 

 3 

 2 



1 



7 

 5 

 12 

 11 

 9 

 10 



1 

 1 



7 

 8 

 2 

 4 

 4 

 5 

 8 

 5 



8 

 19 

 7 

 7 

 6 

 9 

 2 

 4 



1 

 1 



1 

 3 



9.1 



.80 to .84 



.85 to .89.... 



.90 to .94 



.95 to .99 



1.00 to 1.09 



1 

 2 

 3 

 3 

 3 

 3 

 2 



15.4 

 10.7 

 • 15.4 

 14.0 

 13.2 



1.10 to 1.19 



1.20 to 1.29 





2 



9.9 

 6.0 



1.30 to 1.39... 











1.6 



1.40 to 1.49 



1 

 1 











1 





1 



2.5 



1.50 to 1.59 













.8 



1.60 to 1.70... 





:.:.::.:.... 















21 



.7 























Total.... 



19 



4 



ii 



14 



23 



12 



56 



31 



43 



63 



7 



80 



363 



100.0 



i 0.76. 



3 1.70. 



The largest number of samples have a content of ash ranging from 

 0.80 to 1.10 per cent, and nearly 88 per cent of the samples range 

 from 0.77 to 1.20 per cent. The lowest ash content found in this 

 examination, 0.76 per cent, was obtained in a sample from Ohio and 

 in one from Canada. In some of the experimental work, however, 

 ash contents as low as 0.72 per cent were found. These total ash 

 figures may be considered abnormal, as they were found in sirup the 

 lead number, malic acid value, and insoluble ash content of which 

 were far above the minimum figures. 



Table XIV. — Comparison of percentage of samples of sap and sugar sirup with vary- 

 ing ash content. 



Ash content. 



Maple- 

 sap 

 sirup. 



Maple- 

 sugar 

 sirup. 



Ash content. 



Maple- 

 sap 

 sirup. 



Maple- 

 sugar 

 sirup. 



Per cent. 

 0.00 to 0.76 



Per cent. 

 0.2 

 3.7 

 11.2 

 11.0 

 17.7 

 12.4 

 19.8 



Per cent. 

 0.7 

 9.1 

 15.4 

 10.7 

 15.4 

 14.0 

 13.2 



Per cent. 

 1.10 to 1.19 



Per cent. 



12.3 



6.0 



3.7 



.4 



.6 



1.0 



Per cent. 

 9.9 



.77 to .79 



1.20 to 1.29 



6.0 



.80 to .84... 



1.30 to 1.39 



1.6 



.85 to .89 



1.40 to 1.49 



2.5 



.90 to .94 



1.50 to 1.59 



.8 



.95to .99 



1.60 to 1.70 



.7 



1.00 to 1.09 











The same percentage (88.4) of samples in both kinds of sirup have 

 ash contents up to 1.20 per cent, although 36 per cent of the sugar 

 samples and 26 per cent of the sap sirups have an ash content between 

 0.77 and 0.89 per cent. The appearance of the ash was not regular, a 

 few samples being very green, while many were white or light gray. 

 The appearance of the ash depends upon the method of burning. 



