172 GARDEN PLANNING 



blocks, would give opportunity for earth pockets 

 and crevices of various sizes. There should 

 be no pointing, and only so much mortar used 

 as is necessary to secure stability. Large 

 spaces may be filled with the compost recom- 

 mended for the rock garden and then sown. 

 The smaller crevices may be filled with soil 

 mixed with the seeds. The sowing should 

 be done in the autumn. 



