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UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 466 



Contribution from the Bureau of Chemistry 

 CARL L. ALSBERG, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



November 3, 1917 



MAPLE SUGAR 



COMPOSITION, METHODS OF ANALYSIS, 

 EFFECT OF ENVIRONMENT 



By 



A. HUGH BRYAN, Formerly Chief, Sugar Laboratory, in 



Collaboration with M. N. STRAUGHN, C. G. CHURCH, 



A. GIVEN, S. F. SHERWOOD, Assistant Chemists - 



CONTENTS 



Introduction 



Definitions 



Sampling 



Methods of Analysis 



Results of Analysis 12 



Discussion of Results . 27 



Canadian Maple Sugars 35 



Page 

 1 

 1 

 3 

 3 



Page 

 Effect of Environment on the Composi- 

 tion of Maple Sugar 36 



Changes in Composition and Color from 



Sap Sirup to Sugar Sirup 38 



Moistu-e in Maple Sugar 39 



Maple Cream, Honey, and Wax ... 41 



Conclusions 42 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1917 



