PULPING AND PREPARING. l8l 



house must answer to the following conditions : 

 i. Cheapness and simplicity of arrangement, so that 

 it can be fitted up without difficulty by native work- 

 people. 2. Avoidance of all machinery whatever, 

 which cannot undergo repairs in those mountainous 

 districts, and would require technical supervision. 

 3. The arrangement must be destined and calcu- 

 lated to dry any required quantity of Coffee. 4. The 

 beans must be all of an equal dryness and hard- 

 ness, without injuring the colour or the aroma. 

 5. The use of all kinds of wood and refuse must 

 be practicable for drying purposes, and the least 

 possible quantity of fuel in proportion to the 

 volume to be dried. 6. The escaping air, on leav- 

 ing the apparatus, must have absorbed the greatest 

 possible quantity of water. 7. The operation 

 should not require any great number of workpeople 

 or close supervision, and must be able to be left 

 to any intelligent coolie. 



Mr. Van Maanen is said to have succeeded in 

 compassing all this, and in setting up establish- 

 ments with which everyone is highly gratified. 

 As to the establishments themselves, they consist 

 in a building which is warmed by flues serving 

 also as smoke conduits. The building is square 

 or oblong, according as the local situation or the 

 quantity of Coffee to be dried may require; and 

 the drying is effected by a supply of outer air, 

 heated by contact with the flues, and which escapes 

 after absorbing the moisture of the Coffee, under 



