122 THE FORMAL GARDEN IN ENGLAND v.

out in 1790. Rea gives a few particulars of the
alleys to the fret of his flower garden. These were
to be 2 feet 6 inches between the fret, gravelled
and rolled and separated from the beds by a
rail 5 inches by 1^ thick, carefully gauged and
levelled and painted white, kept in position by
stout wooden pins about 18 inches long, nailed
to the rail and driven into the ground. The
rail was to be 4 inches above the surface of the
path and the grass 1 inch. This rule for the
height of the grass above the path is still given
by landscape gardeners. The small alleys
running in and out of the different parts of the
fret communicated with a broad path 17 feet 6
inches wide, running round the four sides of the
entire fret. Instead of the plank, Rea says box-
edging will do for a border to beds and grass,
but all the borders to the walks should be set
with these planks.

A charming walk is described by Lawson in
dealing with the fences of his orchard. The
best fence, he says, is a hedge with a mount or
double ditch ; the ditches are to be 2 yards wide
and 4 feet deep. Between them is to be formed
a walk 6 feet wide, raised some 5 or 6 feet
above the level of the orchard or garden. . The
outer bank of this walk is to be planted with
thorn, the inner with cherry, plum, damson,
bullas, or filbert, and the trees to be trimmed
to any form you fancy. At each corner of the
walk and in the middle of each side " a mound