128 



I'RELIMINAKY WORKS. 



n. are so iirranged as to strain tlu' wires on liolli sides : they 

 are usually, in this fence, placed 220 yards apart. The stan- 

 dards, /^ are tee-irons, 1^' x li" x ^'jv", placed 12 feet 

 apart. The top wire is fT'^lviinised barb No. 4, the three 

 lower wires No. (> galvanised strand. The netting is li inches 

 mesh, medium quality; it reaches 3J feet above ground, and 

 is pegged down inches along the surface outside, to 



prevent rabbits burrowing under it. This fence is offered in 

 the London market for l.s-. -ild. a yard.* 



6. C()iiihiiiatio)is. 



Frequently two kinds of fences are combined. More par- 

 ticularly wooden palings or wire fences or even turf dykes 

 and walls may be added to ditches, or walls and turf dykes 

 may carry a wire fence or a wooden paling (see Fig. !)). 



7. Choirr of Fence. ■ 



The choice of fence depends chiefly on : 



(1.) The time durhig which it is required. 



(2.) The species of animal to be kept out. 



If an area is to be protected permanently, or at any rate 

 during a considerable period of time, the fence should be of a 

 substantial nature, such as a living hedge, wire fence with 



* I5y tlic Iron Wire. Wire Hn|)0, and Foiieiiig t'oniiKiny. Westminster. 



