98 A MANUAL OF FORESTRY. 



after year, and where the transport is fairly easy and 

 cheap. There is practically no difference in the treat- 

 ment of temporary and permanent nurseries, except that 

 in the latter case all arrangements are of a more lasting 

 nature. 



a. Choice of Site. 



The site should be favourable for the growth of the 

 particular kind of plants which are required. If only 

 one species, or a few of similar requirements are wanted, 

 a site can be chosen which agrees with their special re- 

 quirements as regards soil and situation. In the majority 

 of cases, however, plants of differing requirements are to 

 be raised, and it is therefore best to choose a site of 

 average conditions. 



The most suitable soil is a light or sandy loam. 

 Heavy clay should be avoided, as it is less suitable than 

 even a light sandy soil. Good depth is essential, as it 

 insures a more even degree of moisture. 



As regards situation, the site should, if possible, be in 

 the centre of the area where the planting has to be done, 

 but if no suitable locality is there available, it is better 

 to go to a moderate distance in search of it. The site 

 should be accessible and easy of control. A gentle slope 

 is best, or an elevated level plain ; in either case it should 

 not be exposed to danger from frost, especially late 

 spring frost ; fairly sheltered, but open to the free circu- 

 lation of air. The aspect depends on circumstances, 

 especially latitude and elevation. In temperate Europe 

 the least favourable aspects are probably an eastern or 

 south-eastern (on account of late frosts) and a southern 

 (on account of the rapid evaporation of moisture). 



