The sugar bags are held beneath the bottom of the bin on specially ar- 

 ranged trucks and by opening a gate the bag is rilled with sugar. In some 

 of the later designed factories automatic weighing scales are placed beneath 

 the bagging bins and the sugar is automatically weighed and discharged into 

 the bags. The bags are then stacked by automatic machinery until shipped 

 to the United States or other countries for refining. 



Molasses 



The molasses which is separated from the first boiling of 

 By-Product su S ar ^ s a g am treated with heat and is pumped to supply tanks 

 on the vacuum pan floor. A part of it is drawn into the vacuum 

 pan with the first syrups in boiling a strike of sugar. The balance of the 

 molasses not taken in with the first syrup in the first boiling receives a second 

 boiling in a vacuum pan similar to the No. 1 sugar but this No. 2 mas- 

 secuite is discharged into large cylindrical tanks called crystallizers. These 

 tanks have heavy steel shafts passing through them from end to end, to which 

 are fastened scrolls or paddles and are driven by worm gearing from the out- 

 side. A strike of No. 2 massecuite received from the vacuum pan into 

 a crystallizer is kept in motion for several days; the shaft and paddles in the 

 crystallizer revolving at about one revolution in three minutes. As the mas- 

 secuite cools sugar crystals are formed and by continuous stirring are moved 

 about so that they come in contact with small particles of sucrose and continue 

 to grow in size until they have absorbed the greater part of the crystallizable 

 sugar. The massecuite is then dropped into a centrifugal mixer and is dried 

 similarly to the No. 1 sugar. The residual molasses is pumped to a tank 

 outside of the factory and is sold to. distilleries for making alcohol or other 

 spirits. When there is no market for alcohol, molasses is used in making 

 of cattle food or is sometimes burned under the boilers with the bagasse. 

 The final molasses contains potash and is sometimes burned in special fur- 

 naces for the purpose of recovering potash to be used as fertilizer. 



Chemical Control 



Every mill is provided with an extensive laboratory where 

 Science in skilled chemists are constantly engaged in sampling and analyz- 

 ing the cane, raw juice, syrups, sugars and molasses. This is 



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