84 SPACE FOR WALL TREES. 



ferior exposure ; for in truth one and all of them 

 are valuable in the proportion of the sunlight which 

 they receive. 



But supposing that you have now made choice 

 of as many as your best wall can accommodate, the 

 room to be given to each is an important consider- 

 ation, and not very often, as far as I have seen, 

 considered wisely. A small bit of wall will yield 

 a shilling's worth of fruit in one year, and that is 

 more than the price of a good tree. The wall is 

 the main expence. Have it well filled up as soon 

 as possible, and have it in view to keep it always 

 full, removing the whole or part of any tree that 

 proves less valuable than the one which it begins 

 to incommode. You may, according to this plan, 

 allow one dwarf tree for every twenty feet in the 

 length of the wall; and let the whole be inter- 

 spersed with riders if your wall be eight feet high 

 or upwards. These last should all be of kinds 

 which bear almost immediately as cherries, plums, 

 and various sorts of apples. The dwarfs are 

 trained close to the ground ; the riders are so called 

 because they overtop their neighbours: and the 

 first design is to have them out when the dwarfs 

 make up to them. But it may happen that you 

 will be loath to part with one of these short-leased 

 tenants, especially if the neighbour that comes to 

 supplant proves him less deserving; in which case 

 the rider with his long shank, may be trained in 

 the form of a windmill, pointing the vanes in all 

 directions, or two branches may be led downwards, 



