534 PROTECTION AGAINST NON-ATMOSPHERIC PHENOMENA. 



such places we protection forests, and should be managed either 

 by selection or as coppice. For mountain-tops and plateaux, 

 the selection system is best, when accompanied by the timely 

 planting up of all gaps that may occur in the wood ; but on 



Fig. 261. 



steep slopes, high forest presses too heavily on the soil and 

 should make way for coppice with short rotations. 



(b) Wherever a landslip is to be feared, the bank should 

 be kept up by wattle-fences, by protection of the soil-covering, 

 and by not extracting the stumps of felled trees. The various 

 protective measures which may be adopted, depend on the 

 cause of the danger and the circumstances of the locality. 



