2OO 'Coffee Planting. 



which should be made in double plates with a space 

 between ; the plates being bored, and the holes 

 filled up in the same manner as the iron cylin- 

 ders. 



"Another pulper, sometimes used with power, 

 has a crusher and a sieve between the crusher and 

 the barrel, which works with chops. This is a very 

 good pulper for ripe coffee. Then there is the 

 large double pulper and crusher, with elevators, 

 which is a good machine when there is an engineer 

 near at hand in case of a break-down. 



" Successful pulping depends greatly on the dry- 

 ness of the season, or otherwise. One season the 

 coffee may be all plump and ripe, and the pulpers 

 will easily work through 90 or 100 bushels an hour, 

 having plenty of water to run into the machines 

 with the coffee. The next season may be a dry 

 one, and the trees bearing heavily, very few of the 

 berries becoming fully ripe. Now the difficulty of 

 pulping commences, the pulp adhering to the 

 parchment owing to the absence of saccharine mat- 

 ter. Should the pulper be set close, it will probably 

 take off the parchment as well as the pulp. The 

 greatest patience will now be required, as the same 

 machinery as was used the preceding year will now 

 be unable to pulp more than one-third of the quan- 

 tity. The fault here, it will be seen, clearly lies 

 with the coffee and not with the machinery." 



