INTRODUCTION. 
emphasised once for all, in a headland with a beautiful out- 
standing boulder; but good points never bear repetition, and 
the finer the dominant feature, the quieter should be the lines 
of the rest. 
The ground for the pool should now be dug out for some 44 to 
5 feet, and the basin lined with a thoroughly well-founded coating 
of cement some six or seven inches thick. No lesser measures 
are of any avail, and always, in the long run, cost more to make 
good and set right than would have been the original cost of the 
job if done properly from the beginning. (This is an invariable 
and inexorable law in all gardening.) The depth allowed should 
be graded from some 4 to 44 feet at one end, for the larger and 
more stalwart-growing Nympheas, to 24 and less at the other 
Y) Minty 
Diagram 3. 
for smaller ones, and such delights as Richardia africana. It is 
a very good idea, too, to arrange a series of secondary overflow- 
shallows, shoaling off into mere bog, for daintier and _ less 
aquatic subjects. Indeed, it should always be arranged that 
there be a second trough all round the pond, to serve as a marsh- 
border, of varying widths, and quickly obliterate the pool’s thick 
and uncomely lips of cement. And finally, as the pool will require 
cleaning and weeding at least once in every two years, a drain 
should always be arranged at the bottom, by which the water 
may be let off. 
With regard to the soil and the planting ;—in a small pool it 
is probably best to plant the main water-lilies on widely separated 
hillocks of very stiff and rich soil, composed of blended clay, heavy 
XXXI1X 
