CANE SUGAE. 



" In order to have fresh information on this point analyses have been made 

 of fresh cane leaves, and of dry cane leaves, just as they were about to fall from the 

 plant but not actually fallen. 



" The results are as follows, and show in a striking manner the nature of the 

 transference of plant food material from the leaf back to the stem as it ripens 

 and as its lower portion becomes dormant : 



ANALYSIS OF ASH. 



Silica 



Carbon 



Iron oxide 



Alumina 



Lime 



Magnesia 



Potash 



Soda 



Phosphoric anhydride 

 Sulphuric anhydride 

 Carbon dioxide 



Chlorine 



Water ., 



Deduct oxygen equal to Chlorine .. .. 

 Nitrogen 



Green 



Leaves. 



46-26 



3-52 



49 



4-68 

 5-08 

 17-23 

 6 60 

 1-39 

 5-45 

 2-39 

 9-09 

 1-25 



103-43 

 2-02 



Trash 



Leaves. 



63-31 



3-47 



38 



03 



6-67 



5-10 



6-49 



3-58 



93 



5-18 



1-97 



1-83 



2-59 



101-53 

 40 



101-41 .. 101-13 



777 on dried '36 on dried 

 leaves. trash. 



GEAMS OF MINERAL MATTEK IN ONE LEAF. 



One fresh cane leaf contains -9688 grams of ash. 

 One fresh trash leaf contains -5304 grams of ash. 



Nitrogen 



9586 

 094 



5304 

 033 



" If this manner of regarding the cane as a growing organism is correct, it may lead 

 us to modify some of our ideas concerning the manuring of sugar canes, and may account 

 for the better result obtained by applying considerable quantities of nitrogen in one dose 

 at an early stage, and for the smaller results obtained from the use of such a slow acting 

 manure as dried blood." 



