57 



which was used up in trials of the machinery at the factory. The time 

 selected for this test was one that would represent as well as possible 

 all the different varieties. Some of our earlier varieties were perhaps 

 a little over ripe and some of the later varieties were decidedly green, 

 but the tests made apply fairly well to all the varieties as they ap- 

 peared at the middle of September. 



A measured quantity of an acre was taken for each determination. 

 On serial numbers 2 to 10, inclusive, one row 1,000 feet long 3 feet 10 

 inches wide was cut, representing .088 of an acre. Eleven and four 

 tenths (11.4) rows of this cane represent 1 acre. On serial numbers 1 

 and from 11 to 1G, inclusive, the rows were 1,089 feet in length, repre- 

 senting .096 of an acre and 10.5 rows make 1 acre. 



An attempt was made to have the canes cut and all the weighings 

 made as quickly as possible, so as to avoid changes in weight in the 

 leaves due to the evaporation of the water which they contain. This 

 was not always possible, but in nearly all of the cases the leaves were 

 weighed before they had had time to loose weight from the cause stated. 

 The method of obtaining the weights was as follows : 



The canes were cut and loaded in the field, the tops all being placed 

 as evenly as possible on the wagon rack. The whole load was then 

 weighed, the tops were immediately cut off with a cane knife, and the 

 load reweighed, the difference in weights giving the weight of the seed 

 tops. The seed tops were cut the usual length for manufacturing pur- 

 poses. The topped cane was then run through the cutting and clean- 

 ing apparatus, and the trash which was separated by the cleaning ap- 

 paratus collected and weighed. This weight deducted from the weight 

 of the topped cane gave the weight of the cleaned cane entering the 

 cells of the battery. The number of cells of the battery filled divided 

 into the total weight of cleaned cane entering the battery gave the 

 weight of cleaned cane chips in each cell. The data give an accurate 

 idea of the proportion of whole cane, seed tops, and leaves con- 

 tained in canes which are still green. All the varieties of cane 

 were green and vigorous, the blades being green almost to the ground. 

 Of course the relative weights of blades to the cleaned cane and seed 

 tops would be greatly altered after frost. 



DATA OBTAINED FOB EACH VARIETY. 



Folger's Early. 

 This cane was cut on the 15th of September from block 13 : 



Weight of whole cane pounds.. 2,700 



Weight of seed tops do 430 



Weight of topped cane do.... 2,270 



Weight of trash, that is, the material blown out by the cleaning 



apparatus pounds. . 323 



Per cent of seed tops to whole cane 15. 93 



Per cent of trash to whole cane... 11.96 



