CONTENTS. 



CHAPTER I. 



Conflicting opinions on essential points during the investigations at the 



Department OF Agricultlre. 1 



History of the development of the beet sugar industry in Europe 12 



Necessity FOR FURTHER research 14 



Future prospects of the sorghum sugar industry. 19 



CHAPTER 11 



Chemistry^ of sugar 22 



Sources of SUGAR 25 



Statistics of sugar 41 



Bibliography OF sorghum 42 



CHAPTER III. 



History of sorghum 50 



Botany of sorghum 54 



Introduction of sorghum into the United States 64 



Hybridization of sorghum 69 



CHAPTER IV. 



Varieties of sorghum cultivated IN THE United States 7.3 



Significance of the names of the varieties of sorghum 79 



Table FOR identification OF VARIETIES. 98 



Comparison of sorghums from different countries 101 



CHAPTER Y. 



Selection and preparation of ground, planting, and cultiv.^tion 108 



Selection AND preparation of seed 114 



Time from planting, to reach certain stages of development 121 



Time fob harvesting crop 122 



Importance of an even crop 126 



Effect of removing seed, etc 138 



Effect of stripping cane 140 



CHAPTER YI. 



Effects of temperature and rain-fall on sorghum 14-5 



Effects OF frost ON sorghum.. 1>4 



Effects OF fertilizers ON sorghu.m 162 



Composition of soil as affecting sorghum 177 



tvJ 



