FENCING. 



13 



of some other 



or augmented by a temporary fence 

 kind. 



Fig. 1 represents a cross section of a wedge-shaped 

 thorn hedge (after Brown). 



Fig. 2 shows a longitudinal section of a thorn hedge 

 (after Heyer) ; each plant has been coppiced near the 

 ground ; of the shoots which appeared, two were left on 



Fig. 1. 



Fig. 2. 



each stool, trained to opposite sides and interlaced. Such 

 a hedge can be made to keep out hares and rabbits. 



Living hedges are, in Forestry, only used for nur- 

 series or along roads leading to pastures. 



2. Watts. 



These may be dry stone walls, or they may be con- 

 structed with mortar. The former are liable to fall, and 

 the latter are very expensive. Walls generally interfere 

 with the free circulation of air ; in some cases this may 

 be desirable for the purpose of protecting tender plants 

 against cold air currents. 



Turf dykes are walls constructed of turf; they can 

 replace stone walls, where turf is abundant and stones 

 are rare; at the same time they are of a perishable 



