THE DEFECATION OF CANE JUICE 



277 



and n are used to empty the apparatus. Air vents are shown at o. The cen- 

 trally located box into which the juice is conducted is provided with an overflow 



FIG. 162 



to mechanically remove foam and floating particles. The superstructure 

 shown is for the purpose of carrying the gear required to operate the 

 scraper and pumps, while manholes afford access to each compartment. 



I 



FIG. 



In Mauritius the clear juice obtained from the defecators is often allowed 

 to flow in a slow current in an open shallow tank called a Bac Portal. In the 



