ANALYTICAL WORK AT MAGNOLIA, LA. 



The analytical work at Magnolia was divided into three classes, viz : 



(1) A study of the composition of the juices from the mill and a par- 

 tial chemical control of the operation of the factory. 



(2) A complete chemical control of the experiments in diffusion. 



(3) Miscellaneous work. 



The chemical work was done chiefly by Messrs. Crarnptoii and Fake. 

 During the latter part of the season Dr. Cramptou was absent, and the 

 control work was done solely by Mr. Fake. The miscellaneous work I 

 did myself, assisted part of the time by Mr. Fake. 



The regular chemical work began on the 4th of November, 1887, and 

 ended January 19, 1888. 



In sampling mill juices a measured portion was taken from each of 

 six clarifiers, representing the average composition of the juice from 18 

 tons of cane. In comparative work, the samples were taken as nearly 

 as possible from the same body of juice in different stages of concentra- 

 tion. The samples for the diffusion work were taken as at Fort. Scott 

 and Bio Grande. 



MILL JUICES. 



During the first few days of the season the juices from the mill were 

 run through a sulphur box, where they were saturated with sulphurous 

 dioxide. They then passed through a heater to the clarifiers and thence 

 to the quadruple effect and strike pan without the use of animal char. 

 This method of treatment was abandoned after a short trial, and no 

 further sulphur was used except in one of the diffusion trials. 



In Table No. 27 are found the analytical data obtained during this 

 lime. 



TABLE No. 27. Mill juices sulphured. 



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