ill 



5. They must be capable of being easily cleaned. It 

 is necessary to clean them out frequently. With cups 

 made of glass or white porcelain, it is easy to see if 

 this has been done, but grey earthenware cups conceal 

 the dirt rather. 



6. They must not be fragile. 



7. They must be moderate in price. 



I have seen the following cups in use. 



i. Cocoanut shells. 



These do not answer the requirements of i, 3 & 5, 

 and their use should be strongly disapproved. 



2. Tin bowls. 



Sometimes, soldered tin bowls are used. They do not 

 answer the requirements of 2, 3, 4 & 5. 



3. Pressed Steel cups. 



These are so made that the sides do not make a sharp 

 angle with the bottom, however they do not answer to 

 requirements 2 & 5. They have some advantage in that 

 a handle can easily be attached, and they can be fixed 

 on the tree above the level of the soil. 



11 



