52 COME INTO THE GARDEN 



vate still more and turn swamp into pool, with 

 a stock of goldfish or commoner kinds as mos- 

 quito exterminators. 



In this connection let me say that in order to 

 insure against mosquito breeding, every tiny 

 little water pocket among the grasses and the 

 mud at the margin of such a pool or pond must 

 be opened to the fish and kept so; and all over- 

 hanging branches of trees or shrubs must be 

 cleared away so there shall be no deep shadows 

 which they will avoid and so miss the larvae. 

 The presence of mosquitoes around a well 

 stocked pool is a sure indication that one or both 

 of these requirements have not been met, for if 

 the larvae are where the fish can get them, they 

 will do so. It is only when the fish are shut off 

 from them by grasses or shadows that they fail 

 in the mission assigned them. 



The effect of topography upon garden design 

 is of course very great. Yet design, even upon 

 irregular ground, is governed in a general sense 

 by the same considerations which affect it else- 

 where, in spite of the great measure of liberty 

 which it must have in order to conform to the 

 ground's undulations. For the axes are quite 

 as important whatever the contours, and the 

 border, framing and holding all together, is just 

 as necessary. A design may be simple too — 



