MAPLE SUGAR. 43 
TasLeE XXIX.—Samples of maple products with a total ash content of 0.77 per cent or 
less. ' 
Winton Malic 
lead acid 
Winton Malic 
Serial Total |Insoluble léaid acid 
Serial Total | Insoluble 
No. ash, ash. | number.| value. No. ash. ash. | number.| value. 
Per cent. | Per cent. Per cent. | Per cent. 
6680. ...- 0. 6 0. 26 2. 22 O8G66))|| 27743 eeee 0. 76 0. 45 1. 86 0. 75 
S365 ae SAL ape 1. 96 . 61 (1) S77. 22 2. 04 . 62 
SO 54 ee iE 23 213 1.15 (1) tll 22 2. 42 .61 
8349_.... ah . 22 1. 86 . 92 (2) 23276 ~ 25 1. 87 . 62 
Se sae . 76 223 1. 85 . 78 (2) AHL . 24 1. 86 - 60 
1 Taken from experimental work on change in color from sap to sugar sirup. 
2 Taken from experimental work on resugaring. 
Thus, in the examination of 844 samples, it is noted that a total 
ash content of 0.68 per cent has been found in one case only, and 
0.76 per cent in three cases only; all other samples give 0.77 per cent 
or over. In these four cases, all other figures are within those 
found in normal products, namely, Winton lead number 1.85 or 
over, insoluble ash 0.23 or over, and malic acid 0.59 or over. It 
seems then that percentages of ash lower than 0.77 per cent are 
abnormal figures and do not necessarily indicate a mixture with 
other sirup, especially cane-sugar sirups. 
The insoluble ash analysis is of equal importance with that of the 
total ash. Among the sap sirups the lowest insoluble ash content 
was found to be 0.23 per cent, with an average of 0.37 per cent and- 
an extreme of 1.01 per cent.. Three samples of sugar sirups had an 
insoluble ash content below 0.23 per cent, but the average was 0.36 
per cent and the extreme 1 per cent, practically the same as in the 
case of sap sirup. In the experimental work about five additional 
samples with an insoluble ash content of 0.22 per cent were found. 
The results on these eight samples appear in Table XXX. 
TABLE XXX.—Samples of maple products with an insoluble ash content below 0.23 per 
cent. 
Serial | Total |Insoluble| “Winton | Malic || Serial | Total [Insoluble] Winton | Malic 
No ash ash lead acid No ash ash lead acid 
5 : s number. value. E ¥ . number.| value. 
Per cent. | Per cent. Per cent. | Per cent. 
8349__... 0. 77 0. 22 1. 86 0. 92 0.77 0. 22 2.42 0. 61 
S344. 78 21 1. 85 .59 (1) . 81 eee 1. 96 60 
Sa30F ee - 81 22 2.01 77 (4) . 88 Soy) 2. 20 66 
(@) Sie 22 2. 04 62 1) . 85 E22, 1. 96 69 
1 Taken from experimental work on change in color from sap to sugar sirup. 
All have a total ash content of 0.77 per cent or higher, a Winton 
lead number of 1.85 or higher, and a malic acid value of 0.59 or 
higher. With the possible exception of No. 8344, these samples are 
abnormal in their insoluble ash content but normal in the other 
figures. Finding only 3 samples out of 844 with an insoluble ash 
