57 



The following are the notes of diffusion : 



Every effort was made to hold the temperature at 200 Fahrenheit, but until 

 the battery had been used in one entire round this is almost impossible to do, since 

 sending in quickly water heated to 200 Fahrenheit into cold iron cells filled with 

 cold chips the loss of heat by radiation and convection is very great. Six min- 

 utes were allowed for the diffusion of each cell after tho hot water was turned on. 

 Every effort to grain in the vacuum pan proved abortive, as the following notes of 

 Mr. IJalchvin, who had charge of the pan and was assisted by Mr. Barthelemy, will 

 show: 



''Part of juice concentrated in double effect on first watch, remainder on sec- 

 ond watch, when the juice got very hot, 180, and was emptied in cars to cool; 

 finished concentrating on morning of 13th at a temperature of 155 to 160 Fahr- 

 enheit. Juice dark colored and some feculent matter present. After mixing sir- 

 ups started vacuum strike pan at 2 p. m. on 13th ; temperature, 138 to 140 

 Fahrenheit; very thick; nothing but candy would form in the pan. Allowed to 

 stand, half an hour until candy dissolved, but no grain. Stood again one hour ; at 

 7 p. m. still no grain. Cooked very thick and remained in pan until 2 p. m. next 

 day, when it was all boiled to string sugar and put in the hot room. Injured some 

 by being cooked to candy. 



" lu the hot room it began at once to grain, until the wagon was quite solid with 

 small grains of sugar. 



It was centrifngaled and gave the following results : 



Sugar 



Molasses. 



Pounds. 

 49 

 752 



RECAPITULATION. 



Pounds. 



Sugar obtained per ton sorghum 1C. 5 



Molasses obtained per ton sorghum 237. 1 



After the analyses of the mill juices were known, little or no hope was entertained 

 of successful sugar results. Indeed, it is wonderful with such juices and after such 

 treatment that any sugar should be obtained. 



September 17. It has often been published that neither sorghum nor its juices will 

 stand transportation or delay in working them up, after being cut. That such is not 

 the case with us is abundantly proved by the following and many other experiments 

 during this season : On September 16 Mr. Barrow, assistant at the State experiment 

 station, was sent to Baton Rouge to harvest and ship a car-load of sorghum from that 

 station to this. By 9 a. m. on the morning of the 16th he had cut and loaded a 

 closed car with Early Orange sorghum. This sorghum was quite wet from dew and had 

 its leaves and tops still on -conditions making fermentation quite feasible to almost 

 any crop. It was delivered at Kenner by Mississippi Valley Railroad at 7 p. m. of 

 same day. It was unloaded and delivered at sugar-house at 12 in. of tho 17th, and 

 worked up as delivered. The cane had been badly blown down by tho storm of the 

 IDtli, and was filled with suckers several feet long, now in full heads. It was quite 

 low in sugar, as the following analysis of selected stalks, made on September 11 

 showed : 



Total solids 11.9 



Siit-ioso 7.8 



Glucose... . 4.52 



