Mr. George S. Hudson 191 
efficiently removed by polishing, and even that 
does not always prevent this blemish from 
sometimes penetrating to the interior of the 
seed. It would probably be useful to follow the 
procedure used in military stables, and incor- 
porate an appreciable quantity of powdered 
sulphaté of copper in*the upper ‘rendering ” 
of the concrete floor. Where a wooden floor 
already exists, a covering of very thin copper 
sheeting, with as few joins as possible, would 
probably prove advantageous. The idea is to 
provide a surface free from cracks, in which 
mildew spores cannot persist, and which can 
be effectively cleansed with a bucket of water 
and a hard broom. 
As to the space required per 100 bags of 
cacao, no hard and fast rule can be adopted. 
Some estates get more than half their crop 
within a few months of the year,’ other estates 
with lighter soil-and younger trees divide the 
crop much more equitably throughout the year. 
Again, some estates near the sea coast or on 
flat, open Jand get much more sun and less rain 
than other plantations situated up in the hills. 
Without auxiliary artificial heating probably 
5 superficial sq. ft. per cwt. of dry cacao 
produced would not be excessive. With an 
auxiliary hot-air chamber or machine, probably 
1 The Gold Coast returns, for instance, show that out 
of an export of about 40,000 tons cacao, some 28,000 
tons, or 70 per cent., were exported in the four months 
November-February. 
