27 



by the spindle, showed a loss of 8.61 per cent, in total solids when dried 

 in open dishes. 



At Couway Springs tuis loss in plain dishes was 7.24 per cent., and 

 in asbestos 8.23 per cent. 



With diffusion juices these losses were, for Douglass, 11.34 per cent., 

 and for Coiiway Springs 9.67 per cent, in plain dishes, and 10.83 per 

 cent, in asbestos. 



The mean loss for normal juices at Douglass and Con way Springs 

 was 8.36 per cent. 



For the diffusion juices the mean loss was 10.61 per cent. 



It appears therefore that a saccharometer cf the standard Brix vari- 

 ety, as standardized by a pure cane sugar solution, must be corrected 

 by fully 10 per cent, of its readings in order to give an approximately 

 true indication of the total solids found in the diffusion juice of Kansas 

 sorghum. For sorghum grown in New Jersey, which was the source 

 of most of the juices examined here, the correction will be only about 

 7 per cent. 



I am having constructed some saccharometers with scale to read as 

 indicated by the above corrections. 



The apparent purities of the sorghum juices will be considerably 

 raised by this correction; thus at Douglass the purity of the normal 

 juice is raised from 59. G3 per cent, to 65.31 per cent., and at Conway 

 Springs from 6G.70 to 72.76 per cent. The purity of the diffusion juices 

 of the two localities is raised from 58.59 to 66.86 per cent., and 62.92 to 

 71.13 per cent., respectively. 



SUMMARY. 



It has been my duty during the past few years to report the facts 

 concerning the sorghum industry as they were developed by the re- 

 searches of the Department and of others. These facts have been of a 

 varied nature 5 sometimes they have been favorable to the industry and 

 sometimes unfavorable, but in all cases they have been fully set forth 

 and commented on in the light of knowledge at hand. In these inves- 

 tigations 1 have been unmoved by the abuse of interested parties, which 

 I have received on account of my unwillingness to conceal the weak 

 points of sorghum. It was thought when Bulletin No. 18 was issued 

 that the experimental work on the part of the Department with sorghum 

 was finished, and in that bulletin a summary was made of the investi- 

 gations conducted in the United States during the past twenty-five 

 years. In that bulletin I expressed the belief that with cane as rich as 

 had been produced in Kansas on a large scale it was probable that a 

 yield of from 80 to 90 pounds of sugar per ton of clean cane can be 

 secured. The results of the past year confirm me in this opinion and 

 indicate that, with wise management and careful control and proper se- 

 lection of locality the sorghnm -sugar industry may be made financially 

 successful. In previous pages I have endeavored to set forth carefully 



