REPORT OF THE CHEMIST. 



39 



The difference of 1.60 per cent, in the yield of sugar is due to the fact 

 that our seconds did not have sufficient time to granulate and to settle, 

 consequently much of the sugar of small grain passed through the cen- 

 trifugals into the molasses, as proved by the analyses of the said mo- 

 lasses, showing far more per cent, of sugar than it should have had. 



ANALYSIS OF MOLASSES. 



Pry substances by saccharoineter 70. 92 



Water 1 20.08 



Crystallizable sugar 63. 82 



Glucose 1'2.Z3 



Foreign substances 3.7:2 



It appears from the report made by Mr. E. D. Seghers that on the 

 second rem of diffusion we came very near obtaining the proper propor- 

 tions of sugar and molasses. 



To show the comparative yield of the mill and diffusion processes, 

 the table taken from Dr. Kratz's report is given: 



Comparative tahle as to yield. 



Process. 



Dura- 

 tion. 



Quantity 



cane 

 consumed. 



Products. 



1 



c „„ „„ Molas- 

 Sa S ar - ses. 



Sugar. 



Molas- 

 ses. 



Total. 



Mill run 



Diffusion 6econd 



Days. 



6 

 6 

 5 



Pounds. 



1, 386. 730 

 987, 945 

 915, 515 



Pounds. 

 57, 743 

 51,706 

 54, 549 



Pounds. 

 43, 170 



50, 778 

 38, 752 



Per cent. 

 4.154 



5. 234 

 5. 958 



Per cent. 

 3.113 

 5.139 

 4. 233 



Per cent. 

 7. 277 



10. 373 

 10. 191 



Process. 



u 



as 



EG 



Surplus. 



CO 



9 

 so 



00 

 ■ 



1 



*3 

 o 

 H 



c m 



.5 tx 



S » s 



||1 



1 Ml 



ooxd 



U u 



8 s . 



• 9 ? 



£ = ■ 



pi 6 



io = 

 go>ej 



's=» s 



CXrH IS 

 <) 



Cost of 1.000 pounds, 

 Including cano at 

 $5 per ton. 



i 

 § 

 ■ 



SO 



& 

 n 



s 



cz 



X 



■ 



b 

 Q 





Per cent. 



Per cent. 



Per cent 



$12 53 

 15 10 

 13 82 





$46 88 



39 i:o 

 38 35 



Pound*. 

 90, 276 

 90, 284 

 83, 764 



Per cent. 

 6. 51 

 9. 14 

 9.15 



Diffusion first 



Diffusion second.. . 



25. 7 

 43.0 



65.1 

 35. 98 



42. 54 

 40.0 



$2 57 

 1 29 



It will be seen, by studying carefully the above table, that owing to 

 better manipulations on the part of ali employe's the relative quantities 

 of crystallized sugar Avas very much increased in this run over the first 

 run, and, financially considered, still better in comparison to mill run 

 than our first run had been. 



The total percentage of sugar and molasses in this run appears to be 

 less than in the first, but in reality it is about the same, because it must 

 be remembered that sugar contains from 1 to 3 per cent, of water, and 

 molasses from 20 to 25 per cent., and in the above figures this water is 

 " counted in," as it always is in commerce. 



In spite of this most pronounced success of the diffusion process, it 

 has not been introduced into Louisiana, and, so far as I know, has not 

 extended beyond these original experiments. I append a letter which 



