400 FOREST PRODUCTS 



markedly and many orchards heretofore tapped little or not at all have 

 been brought into production. 



BIBLIOGRAPHY 



Bryan, A. H. and Hubbard, W. F. The Production of Maple Syrup and Sugar 

 Farmers Bulletin 516. U. S. Dept of Agriculture, 1912. 



Cook, A. J. Maple Sugar and the Sugar Bush. Medina, Ohio: 1887. 



Cooke, W. W. and Hills, J. L. Maple Sugar. Bulletin No. 26. Vermont Agricul- 

 tural Experiment Station. Burlington, \'l.: 1891. 



Crocket, W. H. How Vermont Maple Sugar is Made. Bulletin No. 21. Vermont 

 Department of Agriculture, 1915. 



Fox, William F. and Hubbard, W. F. The Maple Sugar Industry. Bulletin No. 

 59. Bureau of Forestry, U. S. Dept. of Agriculture, 1905. 



Hills, J. L. The Maple Sap Flow. Bulletin No. 105 of. The \'ermont Agricultural 

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Hills, J. L. Buddy Sap. Bulletin No. 51 of The Vermont Agricultural Experiment 

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Hubbard, William F. Maple Sugar and Syrup. Farmers Bulletin No. 252. 

 U. S. Dept of Agriculture, 1906. 



McGiLL, A. A Study of Maple Syrup. Bulletin No. 228 of the Laboratory of the 

 Internal Revenue Dept. Ottawa, Can.. 19x1. 



Proceedings of the Annual Meetings of the Vermont Maple Sugar Makers' Associa- 

 tion, 1909-1917, inclusive. 



