68 



Means of analyses of canes whose seed-heads had been removed. 1 



First juices: Percent. 



Sucrose 14. 90 



Glucose 1.32 



Notsugar 3.71 



Total solids 19.90 



Purity co-efficient 74. 80 



Second juices : 2 



Sucrose 14.83 



Glucose 1. 25 



Not sugar 4. 99 



Total solids 20.96 



Purity co-efficient 70. 50 



Analyses of canes whose seeds were allowed to ripen. 3 



First juices : Per cent. 



Sucrose 14.72 



Glucose 1.22 



Notsugar 3.58 



Total solids 19.59 



Purity co-efficient 74. 93 



Second juices : 4 



Sucrose 14.60 



Glucose 1.18 



Not sugar 4.77 



Total solids 20.67 



Purity 70.54 



Analyses of juices from stripped and unstripped canes. 6 



Sucrose 



Glucose 



Not sugar 



Total solids 



Purity co-efficient . . 



Canes with seed heads 

 cut. 



Stripped. 



Par cent. 



15.73 



1.57 



3.37 



20.68 



75.99 



Unstripped, 



Per cent. 



14.48 



1.99 



2.84 



19.41 



74.52 



Canes with seed heads 

 uncut. 



Stripped. 



Per cent. 



15.89 



1.36 



3.32 



520. 58 



77.02 



Unstripped. 



Per cent. 



15.05 



1.99 



2.79 



20.00 



75.22 



I add the following observations : 6 



JUICES OF 1884 COMPARED WITH THOSE OF 1883. 



The most surprising phase of tlie experimental work as exhibited in the tables 

 given is the great difference which it shows between the composition of juices ana- 

 lyzed and those analyzed during 1883 : 



Mean percentage sucrose 



Mean percentage- reducing sugars.. 

 Mean percentage albuminoids 



1883. 



8.38 

 4.09 

 .1544 



1884. 



14.72 



1.24 



.961 



1 Op. Clt., p. 141. 



. cit., p. 142. 



Op. cit., pp. 142, 143. 



Op. cit., pp. 148, 149. 

 Op. cit., p. 150. 



