INTRODUCTION. 
will prove invaluable for drought-loving Southerners, which in 
damper climates and richer soils are apt to prove rank and 
impermanent. 
The Bog-Garden needs only the good underlying drainage of 
all other beds, filled with a stodgy, fat, and heavy mixture of loam, 
leaf-mould, manure, sand, and peat. More and meatier manure 
may well be used here, as the intention is to produce a compound 
of extreme and luscious richness. Through this water must 
incessantly percolate. Different climates have different needs, 
and in damp ones a cement bottom or trough for the bog-garden 
is not only unnecessary but even dangérous, as here the object 
is to ensure the quickest of drainage. In hot counties and 
countries, however, moisture may be precious or evanescent; and 
then the bog, no less than the moraine, may be contained in a 
cemented trough, so long as there be an ample outlet drain at 
the bottom of its lower end, as weil as a thoroughly sufficient bed 
of drainage-rubble between soil and cement. Different mixtures 
of soil will of course be arranged for different parts of the bog 
at pleasure, and different degrees of humidity achieved by slopes 
and depressions. 
The Water-Garden is an invaluable adjunct to the rock-garden, 
if the outlines of the pool can be so schemed as to make it look 
harmonious and inevitable there. The cultivation of its inmates 
is of the simplest; they either will not thrive at all, or else, in 
ninety-nine cases out of a hundred, thrive you out of house and 
home. First of all, the lines of the pool and stream should be 
mapped out; they must be neither straight nor gratuitously 
wobbly, but as far as the eye and taste of the designer can 
achieve, should represent the real thrust and flux of naturally 
flowing water into bay and inlet. A nurseryman’s usual idea 
of a pond is a thing shaped lke a kidney-bean, or a figure 
of eight. But cape should answer to bay, not to brother 
cape, and bay must answer headland. At the same time the 
strictest economy should be observed in such flourishes, lest 
the outline of the pool become artificially undulating and diverse, 
like the soul of man. One good point should be made, and 
XXXViii 
