14 



COMPARISON OF AGRICULTURAL AND CHEMICAL DATA. 



A summary of the agricultural and chemical data obtained in the 

 fertilizer experiments are given in Table XII. The analytical results 

 in this table, as well as the figures given on the cane juices throughout 

 the reports of the special agents in Part II, were obtained by the 

 assistants in the sugar laboratory of this Bureau working under 

 the direction of Mr. G. L. Spencer, the sucrose and purities having 

 been determined by A. Wilbur Bache and the reducing sugars by 

 II. W. Houghton. 



The practical result of the experiment that would naturally be con- 

 sidered first is the tonnage. This, however, is. not an absolute standard, 

 as a study of the chemical data in connection with the tonnage will 

 show, the former being of the greatest importance in sirup making 

 in so far as quality is concerned. A glance at the analytical data will 

 si iow that the juices coming from the cane of Field A were very 

 distinctly superior, both in sugar content and in purity, to the juices 

 obtained from the cane of Field B. It is evident, therefore, that a 

 higher grade of sirup would be made from the cane grown on Field A. 



