77 



higher than the average for the entire season. This is 2.88 per cent, 

 higher than the average at Fort Scott in 1887. As noted in connection 

 with the whole canes, the dryncss may partly explain this, but the lo- 

 cation and soil of Con way Springs seem to be especially adapted to the 

 growth of sorghum. It is further south than any other point in Kan- 

 sas, where sorghum has been grown and the season appears to be longer 

 and better than in eastern Kansas. 



The mean of sucrose in d illusion juices is higher than the mean at 

 Fort Scott in 1887, but considerably lower than would be expected from 

 the analyses of the chip juices. The difference may be accounted for 

 either by the dryncss and pithiness of the canes, as just mentioned, or 

 by inversion in the battery. In order to prevent inversion, if any, car- 

 bonate of lime was used in the battery lor a time. Although the acid 

 was neutralized to about the same extent as at Fort Scott, apparently 

 inversion was not prevented. The results of the analyses are given in 

 Tables 12, 13, and 14. In place of carbonate of lime a number of ex- 

 periments were made with caustic lime. The lime was distributed upon 

 the chips as they passed from the macerator to the battery, by means of 

 a roll, about 1^ pounds of lime being added to each cell. 



The object was to add just so much lime to the chips that 100 c. c. of 

 the juice when in the clarificrs would require about 5 c. c. of ^ alkali 

 to neutralize it. To attain this exact point was difficult and the tables 

 in which results of the work are given show all possible variations. 

 The lime as sprinkled on the chips also neutralized the acid in the mill 

 juice, as may be seen from the table. 



If we note samples 183 and 184 on October 5, there appears to have 

 been no inversion whatever. On several other days the apparent in- 

 version was but slight. It may be mentioned further that on those 

 days on which little or no inversion was noted, the percentage of 

 glucose in the mill juice was high, and the amount of juice given by 

 the cane as taken from records of weight of juice was above the aver- 

 age for the season. The average number of cubic centimeters " u alkali 

 required to neutralize the acid in the juices was 40.G. 



Solids iu mill juice 19.39 



Solids in diffusion juice 12.99 



19.30 : 12.09 :: 40.0 : x. 



Normal acidity of the diffusion juice "27. 2 



That is considerably higher than the acidity of juices ibuud at Lu>il 

 Scott, average of which was 19.98. 



