390 



"Will ox's i)roioss with albninon showfil no .special merit, witli the decided ohjcc- 

 tiou of time required to perform the ditiereut operations. * » » 



For diflfusion juice coming hot from the battery, which takes sulphur with dilii- 

 culty, the acid phosphate of calcium seems specially adapted. By liming to excess 

 in the cells aud neutralizing the juices at once in the clarifier with aciil )dio8phate 

 of calcium, excellent results are obtained. In mill houses where sulphuring lue- 

 cedes the lime, the application of acid phosphate is not so easy nor so rapid. It is 

 therefore of doubtful utility in these houses, especially at its present price. * * * 



The use of alum, sulphate of alumina, and superphosphate of alumina are, from 

 our experience, to be strougly condemned as not only injurious to the juice, but 

 strongly resistant to every elFort of rapid settling. 



The trial of Paiicher and Clarke'.s proces.s for the couver.sion of molas.<;o.s 

 into sngar showed that there was no advantage to be gained by the use 

 of tliis nietliod. 



Investigations in the sngarhousc and laboratory showed that — 



Whenever a solution of glucose, dextrose, or levnlose is treated with an excess o 

 lime, a darkening of the solution takes ]>l;i(e with the conversion of these sub- 

 stances into acids which gradually neutralize the lime, until linally if enough linie 

 be present the entire glucose is destroyed and there remains iti the black solution 

 8<dubl<' salts of lime. These acids have been named glucinie and saccharic,' and 

 they fiuin with lime soluble salts. When th<' lime is precipitated from these solu- 

 tiiuis the acids are left in a free state ready to de^stroy the sucrose whenever heat is 

 applie<l. Could some way be found to precijiitate these acids after precipitating the 

 lime, valuable results could be obtained from this jirocess, but unfortunately thecuily 

 ]irecii>itant of these acids (oxides of mercury) are poisons and can not be used in the 

 :iits. 



Ivxin'riiiMMits with rrfcri'iice to tlii- iiithu'iMM- <»f wasli water mi tin- 

 e<'ntrilngal are reporti'd which lead to the foUowing conclusions: 



(1) Massecuite in cooling gives a gre.iter yielil in the centrifugal, and suggest.s 

 tlie jiropriety of the nu-tliod ailopt^d by many jilanters, of dropping their massecuite 

 into wagons and keejiing for several hours in the hot room. 



(2) Mixing the water with massecuite before centrifugalitig gives larger yields 

 than using the same amount in the centrifugal. 



(.3) For every pound of water used in the centrifugal more than a pound of sugar 

 is dissolved. 



Analyses of the mill juices obtaiiuMl from cane grown on plats fertilized 

 with dirterent substances, as reported in a table, indicate that little or 

 no iiitluence was produced by the fertilizers on the ash and albuminoids 

 of the juice. The analysis of the "tinaT' molasses obtained from cane 

 grown on the difierent plats is also given. Investigations of the com- 

 ]»oun<ls for bleaching molasses sold under the name of "sulphine" anil 

 '• boxyde" are H'ported. The boxydc was found to be zinc dust, and 

 snlphine to be a solution of commercial bisulphite of soda with a small 

 (pnintity of sulphuric acid. Whm used together they have proved 

 ellicient agents tor bleachiim m(»lasses. 



