56 



TABLE No. 59 Total solids lij drying on paper coils Continued. 

 DIFFUSION JUICES. 



As in the case of drying in sand, the amount of solid matter found in 

 juice is uniformly less than was indicated from the reading of the 

 spindle. 



EFFECT OF TREATMENT OF MOLASSES WITH SUPERPHOSPHATE OF 



LIME AND ALUMINA. 



It is the custom in the sugar-houses of Louisiana to dilute the molasses 

 and treat it with superphosph ate of lime and alumina, or other chemi- 

 cals, before reboiling it for sugar. To determine the effect which this 

 treatment had upon the molasses, the analyses which are recorded in 

 Table No. 60 were made. 



TABLE No. 60. Treatment of molasses with superphosphate of lime and alumina. 

 MOLASSES BEFORE TREATMENT. 



MOLASSES AFTER TREATMENT. 



REMOVED SKIMMINGS. 



The table is divided into three parts, the first being the analysis of 

 the molasses before treatment; second, analysis after treatment; and 

 third, the analysis of the removed skimmings. 



In the three cases the numbers refer to the same sample. It is quite 

 difficult to secure the same density in each case, and comparison should 

 be made with the ratio of the reducing sugar to the sucrose. From this 

 it is seen that the skimmings, which were removed and which were sup- 

 posed to be gum, were nothing but air -bubbles, surrounded with a film 



