HISTORY OF THE 
52 
[book V. 
etor that has the means of employing stills of that 
magnitude, I shall consider such as are fitting for a 
plantation making, communibus annis, two hun¬ 
dred hogsheads of sugar of sixteen hundred weight, 
and proceed to describe, according to the best of 
my observation and experience, the mode of con¬ 
ducting such an apparatus on such a property, in 
making rum to the greatest advantage. 
For a plantation of that description, I conceive 
that two copper stills, the one of one thousand two 
hundred, and the other of six hundred gallons, 
wine measure, with proportionate pewter worms, 
are sufficient. The size of the tanks (or tubs) for 
containing the cold water in which the worms are 
immersed, must depend on circumstances: if the 
advantage can be obtained of a running stream, 
the water may be kept abundantly cool in a vessel 
barely large enough to contain the worm. If the 
plantation has no other dependance than that of 
pond water, a stone tank is infinitely superior to a 
tub, as being longer in heating, and if it can be 
made to contain from twenty to thirty thousand gal¬ 
lons, the worms of both the stills may be placed 
in the same body of water, and kept cool enough 
for condensing the spirit, by occasional supplies of 
fresh water. 
For working these stills it is necessary to pro¬ 
vide, first, a dunder-cistern, of at least three thou¬ 
sand gallons; secondly, a cistern for the scum- 
mings; lastly, twelve fermenting vats or cisterns. 
