CHAPTER XII. 

 Harvesting the crop. 



I. COLLECTING CUPS. 



It has already been noted that at the foot of the vertical 

 channel a small collecting cup must be attached so that 

 the latex may flow into it. These cups must comply with 

 the following requirements: 



1. The inner surface must be perfectly smooth, so 

 that no latex may adhere to the sides. 



2. The material of which they are made must be such 

 that will have no ^deleterious effect upon the colour of 

 the product. 



3. The cups must not be such as are suitable for 

 any household use, otherwise they may be appropriated 

 by the coolies for use in their houses. 



4. They should have no sharp edges inside, to which 

 the latex may adhere. In some cups the bottom forms an 



with the sides, and there is a resultant loss of latex. 



