166 ANNUAL REPORT 



Kansas, closed his report (see bulletin No. 6, page 19), with the 

 following 



GENERAL CONCLUSIONS. 



The general results of the experiments may be summarized as 

 follows : 



First — By the process of diffusion, ninety-eight per cent of 

 the sugar in the cane was extracted, and the yield was fully 

 double that obtained in the ordinary way. 



Second — The difficulties to be overcome in the application of 

 diffusion are wholly mechanical. With apparatus on hand the 

 following changes are necessary in order to be able to work one 

 hundred and twenty tons per day. (a) The diffusion cells should 

 be made twice as large as they now are, that is, of one hundred 

 and thirty cubic feet capacity, {h) The opening, through 

 which the chips are discharged, should be made, as nearly as 

 possible, of the same area as the horizontal cross section of the 

 cell. 



(c) The forced feed of the cutter requires a few minor 

 changes in order to prevent choking, {d) The apparatus for 

 delivering chips to the cells should be remodeled so as to dis- 

 pense with the labor of one man. 



Third — The process of carbonation for the purification of the 

 juice is the only method which will give a limpid juice with the 

 minimum of waste and a maximum of purity. 



Fourth — By a proper combination of diffusion and carbona- 

 tion, the experiments have demonstrated that fully ninety five 

 per cent of the sugar in the cane can be placed on the market 

 either as dry sugar or molasses. 



Fifth — It is highly important that the department complete 

 the experiments, so successfully inaugurated, by making the 

 changes in the machinery mentioned above, and by the erection 

 of a complete carbonation outfit. 



I believe that this season's work was closed by a public din- 

 ner, given to Prof Wiley, at which some rather complimentary 

 toasts and speeches were given and made in honor of the final 

 success of the work of the department as conducted by the pro 

 fessor. 



This was thought to be the final end of the experiment, and 

 the department asked and received an appropriation of $94,000 

 to erect proper machinery as advised by Prof. Wiley, which 

 was erected at Fort Scott, Kansas, this season. Commenced 



