77 



Three days later the juiee had the following composition: 



Per cent. 



Suoroso , 9.50 



Glucose 5.00 



At Modena, Italy, during the same year, farther experiments were 

 carried 011 by Professor Pirotta. 1 



The experiments were divided into four series. Following are the 

 mean results for each series. In each series are given the means of 

 twelve analyses of sorghum juices : 



First series : 



Specific gravity 1.0712 



Sucrose per cent.. 8.20 



Glucose do 6,53 



Second series : 



Specific gravity 1.0946 



Sucrose percent.. 14.84 



Glucose do .... 5. 14 



Third series : 



Specific gravity 1.0997 



Sucrose percent.. 15.10 



Glucose do.... 5.81 



Fourth series : 



Specific gravity 1. 1039 



Sucrose per cent.. 18.01 



Glucose do 4.17 



In 1882 I made numerous analyses of juice from a large cane-inill at 

 La Fayette, Ind. The analyses represent 50 acres of cane, the greater 

 part of which was stripped and ripe. 2 



The means of the analyses are as follows : 



Sucrose , per cent.. 7.52 



Glucose , do 5. 80 



Specific gravity 1. 0586 



Fifteen varieties of sorghum were also grown on the experimental farm 

 of Purdue University during the same year. The whole of the plots was 

 cut and passed through the mill, and the analysis represents the com- 

 position of the entire juice. 



The means are as follows : 



Sucrose per cent.. 7.17 



Glucose do 5. 15 



Specific gravity do 1.059 



Prof. Giulio Monselise 3 gives the result of numerous analyses of sor- 

 ghum juices. Following are the means of forty-one analyses made on 

 canes planted in April, 1882 : 



Per ceiit. 



Sucrose 11.35 



Glucose 5. 78 



Total solids 18.60 



1 Annali di Agricoltura sul Sorgho Ambrato, 1883, pp. 28 et seq., Roma. 

 'Report Agricultural College of Indiana (Purdue University), 1882, pp. 244-245. 

 3 L'ambra primiticcia o Sorgho Zuccheriuo del Minnesota, Manitova, 1883, Faoicolo 

 Quorto j table opposite p. 192. 



