fail to see. If we subtract these (after having added 

 the impurities to the glucose), as should have been 

 done in all cases, we will have the maximum possible 

 sugar. In nearly every case it will be found that the 

 percentage of sugar is so small that its extraction will 

 be practically impossible. Our Government published 

 in 1878 a special report upon sorghum sugar, and we 

 had the pleasure of examining the same with every 

 possible care, and find the appliances for sorghum- 

 sugar manufacture and its crystallization are completely 

 forgotten. It is true that several machines are given 

 which enable the reader to form a clear idea of the 

 methods adopted by the Hindoos. But machines 

 of practical value of modern origin for the crystalli- 

 zation have been overlooked. (Any ordinary vacuum 

 pan does not answer the purpose.) 



We give herewith a series of interesting figures 

 based upon experiments made in Washington. As 

 may be noticed, the last column represents the maxi- 

 mum (sucrose) sugar that may be practically extracted. 

 This is obtained by the simple* method before men- 

 tioned, subtraction of the sucrose from the total 

 impurities. This should have been done in the Gov- 

 ernment publication just mentioned. 



* In reference to the above, we would say, that in many cases the solids, not 

 sugar, are omitted, we know not why. This would make the results still more 

 unfavorable. 



