The Winning Designs 
not be much less than 2} feet—3 feet is best. It 
should be remembered that the principal charm of such 
a pool is the marginal planting of moisture-loving vege- 
tation. This can only be achieved by arranging a 
margin that is permanently moist, and the pool must 
therefore be excavated sufficiently wide to allow for 
this margin. If, for instance, a water area 1 5 feet 
wide is desired the excavation will need to be 20 feet ; 
this will allow 6 inches on each side for concrete, and 
a 2-feet space all round for moist borders. Having 
SECTION SHOWING CONSTRUCTION OF STREAM OR POND. 
made the excavation, the whole should be concreted 
as shown in the sectional drawing through such a 
pond. 
First the outer walls and bottom, then the inner 
walls, 6 to g inches lower in small pools, lower still in 
the case of large ones. The outer concrete must be 
impervious to moisture, the inner need be only lightly 
constructed, as it has only to hold up the soil in the 
moist margins. It can be built in rough stone if 
desired, but brick or cement answers the purpose quite 
as well. Chambers should be built on the bottom for 
Water Lilies and other true aquatics. The water must 
be kept at such a level that it is always above the inner 
go 
