3 86 



Notices of Books. 



[July, 



accompanying engraving (Fig. 6). The soil is first excavated, 

 and thrown round the margin of the bed, then the brick-rubbish 

 is put in on the bottom and around the sides also, raising the 

 bed somewhat above the level of the ground ; the cavity in 

 the centre is then filled up generally with fine light rich soil, .and 

 the outside is arranged in a gentle slope, and covered neatly 



Fig. 5. 





with turf. The soil may vary in depth from 3 feet to 18 inches, 

 according to the kinds of plants to be grown in it. The chief 

 advantage which this method insures is that of good drainage, 

 but it renders efficient protection against cold winds somewhat 

 difficult. This latter shelter is a most essential requisite for 



Fig 6. 



Brick ruShsh. 



all the more delicate kinds of plants. Mr. Robinson's remarks 

 on this subject are very judicious, and will well bear quotation: — 

 " Warm, sunny, and thoroughly sheltered dells should be 

 chosen where convenient ; and in any case positions which are 

 sheltered should be selected, as the leaves of all the latter kinds 



