speedily run together again into as
hardened a condition as ever. After the soil has been thoroughly manured
and ameliorated in the manner suggested, moderate annual manuring will be
quite sufficient for the future, for, as I have pointed out, coffee is not
an exhaustive crop, though it is essential that a considerable supply of
fertilizing matter should always be present in the soil. Where top soil is
not available, red soil (kemmannu), if procurable, might be used with
advantage, and the results of the experiments previously given seem to
show that it might be even preferable to top soil.

After such an application of manure as I have above advised, the planter
must be on his guard against producing such a heavy crop as will lead to
an exhaustion of the tree, and a failure of the following crop. And should
there be reason to apprehend an over heavy crop, it must be reduced by
free handling and pruning.

In the case of a neglected plantation the trees are sure to be covered
with moss and rough dead bark, and it is of great importance to remove
this at once, and rub the trees down thoroughly.

When manuring, always leave here and there, and at some convenient point
or edge of a road, a short block of coffee un-manured, perhaps about
twelve trees, and next to that a similar block with double the dose of
manure applied to the field, and note the results. In order to have the
effects of the different systems of manuring under constant observation
experiments with different manurial mixtures can be best conducted at
places where four roads meet. I need hardly say that in the observation of
results, nothing should be left to memory, but the planter, the moment he
has observed any result, should on the spot write it in his note book. The
experiments of most importance are the following:--(1) As to the manure
best calculated to bring on vacancy plants rapidly in old and worn soil.
(2) To determine the value of potash as manure. (3) To determine the best
time of year for manuring. (4) To determine how far it pays to manure
little and often, as compared with manuring seldom but in large
quantities. (5) How far the value of bones is due to their lime, and how
far to the phosphoric acid they contain; and (6) how far it would pay to
top dress old soil with earth taken from the adjacent, grass lands. Such
are some of the many experiments that might usefully be tried. It would
also be useful to experiment as regards native manurial