Dr, A. Schulte im Hofe ITI 
side walls could be easily made air-tight, and 
then heat was brought to the produce from a 
furnace at the other end of the shed by passing 
it, z.e., the heat, through a pipe or pipes placed 
under the lowest trays. Such a drying shed 
was first erected in the Cameroons on the 
Kriegsschiffhafen plantation. . 
In other countries large stationary platforms 
(known as cacao-house floors), capable of being 
used for sun or artificial drying are erected. 
A movable roof renders sun-drying possible, 
whilst heating pipes under the floor do the 
same when artificial drying is needed. A 
drying-house constructed according to this, the 
Trinidad (W.1.) system, is to be found in the 
Botanical Gardens in the Cameroons. It has, 
however, proved a complete failure owing 
probably to those using it misunderstanding 
some detail in the heating, or having omitted 
its use. At a subsequent date drying-houses 
were built on some of the estates in the 
Cameroons, fitted with the movable trays to 
be met with in the Trinidad drying-houses. 
In cacao growing countries where the main 
crop coincides with the. rainy season, sun- 
drying is practically out of the question, and 
artificial drying has therefore to be exclusively 
1 Such a system was not considered to have proved 
successful in Trinidad (W.I.), at any rate not on the 
San Salvador estate, one reason being that the aper- 
tures got choked up and so prevented the warm air 
getting at the beans.—H. H. S. 
