[SNELL] MAPLE PRODUCTS 229 



Notes to Table III 



1 Jones 48 syrups — Vermont Agr. Expt. Sta. Eighteenth Annual 



Report (1905), 315-339. Summary on p. 320. 



Bryan 481 syrups— U.S. Dept. Agr., Bureau Chem. Bull. 134 (1910), 



76. 



McGill 115 syrups— Lab. Inland Rev. Dept., Canada, Bull. 228, 



(1911). 

 Snell and Scott. . 126 syrups — Journ. Ind. Eng. Chem: 6 (1914), 217. 



Bryan 363 sugars— U.S. Dept. Agr., Bull. 466 (1917), 26. 



McFarlane 9 Quebec syrups of the season of 1914 — unpublished. 



Van Zoeren 7 Quebec syrups of the season of 1915 do. 



2 Quebec sugars of the season of 1913 do. 



Total iTsT 



The 43 sugars analyzed by Jones {I.e.) are not included because these were 

 analyzed without reconversion into syrup. 



Hortvet's 22 syrups — Journ. Am. Chem. Soc. 26 (1904) 1528 — might have been 

 included without altering the maximum or minimum or appreciably affecting the 

 average. His 19 sugars must be excluded on the same grounds as those of Jones. 

 Jones — Vermont Agr. Expt. Sta. Bull. 167 (1912), 419-474 — has published analyses 

 of 228 syrups prepared from the sap of a few trees of a single orchard in three suc- 

 cessive seasons. On account of the narrow limits of origin and the inconvenience of 

 averaging the results, it has been thought inadvisable to include these. 



2 Same results as on total ash, omitting McGill's 115 samples, for which the 

 ratio is not calculated. One of these syrups (No. 241) has 5-25 times as much 

 soluble as insoluble ash, the insoluble ash (0- 12 per cent) being much lower than has 

 been found in any other genuine syrup, except No. vii of the same collection (0-14 

 per cent). This latter syrup shows a wider ratio of soluble to insoluble ash (4-00) 

 than any of Bryan's syrups but a sugar of Bryan's from Lancaster Co., Penn., with 

 an insoluble ash content of 0-25 per cent shows an equally wide ratio (4-00), while 

 one from Delaware Co., N.Y. (No. 6640) has a ratio even wider (4-07). 



' In addition to McGill's 115 analyses, two of Mr. McFarlane's are omitted 

 here on account of inconsistencies in our records. 



* Snell and Scott 126 syrups, {I.e.) McFarlane 9 syrups, {l.c) Snell and Van 

 Zoeren 20 syrups — Journ. Ind. Eng. Chem. 8 (1916), 242. 



McGill's results on 456 syrups {I.e.) are not included, because these analyses were 

 made upon 5 grams syrup and calculated to the dry basis, a procedure which does 

 not give the same result as direct determination upon the quantity of syrup con- 

 taining 5 grams of dry matter. See Snell and Scott, Joarn. Ind. Eng. Chem. 5 (1913), 

 993-997. 



^ Bryan 481 syrups. 

 McGill 47 " 



Bryan 363 sugars 



Total 891 

 The results of Snell and Scott are not included, since their analyses were made 

 on the quantity' of syrup containing 25 grams of dry matter. 



6 Hortvet 17 syrups— Journ. Am. Chem. Soc. 26 (1904), 1525-45. 



16 sugars ihid. 



McGill 452 syrups l.c. 



Snell and Scott 126 " l.c. 



McFarlane 9 Quebec syrups 1914 — unpublished. 



Total "620 



