Machinery. 67 
are expensive and have burst on several estates in 
this district. Wrought Iron pipes are more ex- 
pensive than cast iron, but there is not the same 
risk of them bursting, and the carriage will be less. 
Gilbert Gilkes Vortex Turbine does not require 
much water, is very compact and noiseless, and 
works extremely well. Waterewheels are very 
easy to work and never get out of order, but take 
more water, the Iron wheels are really the cheap- 
est and do not cost much to carry, being made up 
in small pieces which are easy to fit together. 
Marshall’s engines are most used, and are the best. 
Where economy in space is necessary, a Vertical 
engine should be indented for, but in other cases, 
nothing can be better than Horizontal Engines 
and Locomotive type of boiler, As to rolling 
machines, many planters believe in the Excelsior, 
his machine takes a very large fill and rolls 
fairly well, but rather flattens the twist of the 
leaf. The old original Jackson gives as good 
results as anything and rolls off both soft and 
hard leaf splendidly. The new machine with 
springs above the table is supposed to be a slight 
