89 



The sugars made were equal in every respect to those obtained by mill- 

 ing in similar instances. Without counting the second sugar above 

 named, the grained sugar per ton amounted to 181.5 pounds. The 

 grained sugars in wagons will yield not less than 7,500 pounds or 1 8 

 pounds per ton.* 



The third sugars are estimated by Mr. Barthelemy at not less than 16 

 pounds per ton. 



The total yield per ton of the fifth run will reach therefore 215.5. The 

 number of tons of cane used was 417. 



Summary of results. 



" Estimated. 



JUBUIIUH.VU. 



t Actual weight, 16.3 pounds per ton, and 213.8 pounds total sugars per ton. The third sugars from 

 this run were mixed with molasses from the mill products, and uo separate return of it will be made. 



COMPARATIVE YIELDS BY MILLING AND DIFFUSION. 



The yield in first or grained sugars affords the best comparison of 

 the two S3 r stems of manufacture. Judged by this standard the diffu- 

 sion process had given a yield of sugar fully 30 pounds per ton greater 

 than was afforded by milling. For further data on this point see the 

 report of Governor Warmoth farther on. 



CHARACTERISTICS OF DIFFUSION JUICE. 



The juice of diffusion differs from the mill juice chiefly in its content 

 of water. In addition to this, also, must be noted a slight increase in 

 the ratio of glucose to sucrose. This is due doubtless to a slight inver- 

 sion of the sucrose during the process of diffusion. From a commercial 



* The actual yield reported to me February 23, by Governor Warmoth, was 6,805 

 pounds, or 16.3 pounds per ton. 



