. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Contribution from the Bureau of Chemistry CARL L. ALSBERG, Chief. s\j9*^jru Washington, D. C. PROFESSIONAL PAPER December 18, 1916 THE CHEMICAL COMPOSITION OF AMERICAN GRAPES GROWN IN THE CENTRAL AND EASTERN STATES. By William B. Alwood, Enological Chemist, in collaboration with B. G. Hartmann, J. R. Eoff, S. F. Sherwood, J. O. Carrero, and T. S. Harding. CONTENTS. Page. Introduction 1 Extent of investigation 1 Collection of samples 2 Page. Chemical composition of grapes 3 Discussi3n of analytical results 15
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Contribution from the Bureau of Chemistry CARL L. ALSBERG, Chief. s\j9*^jru Washington, D. C. PROFESSIONAL PAPER December 18, 1916 THE CHEMICAL COMPOSITION OF AMERICAN GRAPES GROWN IN THE CENTRAL AND EASTERN STATES. By William B. Alwood, Enological Chemist, in collaboration with B. G. Hartmann, J. R. Eoff, S. F. Sherwood, J. O. Carrero, and T. S. Harding. CONTENTS. Page. Introduction 1 Extent of investigation 1 Collection of samples 2 Page. Chemical composition of grapes 3 Discussi3n of analytical results 15 Summary of data on sugar and acid for five years 16 INTRODUCTION. This report on the composition of native American grapes is sup- plementary to that published as Bureau of Chemistry Bulletin 145,1 which contains a general statement of the plans of the work, Although final opinion as to the range in chemical composition of the different varieties of grapes grown in various districts may require moie study, the values commonly found are indicated by the results given in these two reports. EXTENT OF INVESTIGATION. Fewer samples were handled at the Sandusky and Charlottesville laboratories during the season of 1911 than in the two previous years, but care was taken to secure representative samples of the varieties analyzed. The field work in 1912 was devoted to other questions than variety examinations. In 1913 the work was largely transferred to new territory and to districts not adequately covered in previous years. The collection and analysis of samples were limited to samples from New Jersey and New York for table and wine grapes and to samples of the i Alwood, William B. Enological Studies, No. 4. The Chemical Composition of American Grapes Grown in Ohio, New York, and Virginia. U. S. Dept. Agr. Bur. Chem. Bui. 145. 1911. 60001°—Bull. 452—16 1. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - co
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