EXPERIMENT STATION BULLETINS. 



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drawn through between the two posts at one end and blocked by two- 

 by-fours. A wire stretcher is then attached to the other end; the fence 

 is pulled up tight; the end drawn through between the end posts and 

 clamps and blocks used as heretofore described. The stretcher can then 

 be slacked back and removed. The wire fence is held in an upright 

 position against the intermediate posts by staples only partly driven. 

 It required but two hours to release, move and again set up 358 feet of 

 fence this way. In some cases it may be necessary to pin the fence 



Fig. 50. 



down between the posts but the occasion for this seldom occurs till 

 the feed becomes too short. Occasionally sags will occur in the ground 

 where pins would be lifted by the tension of the wire. In such cases the 

 fence can be held down in the following manner, viz.: Wrap a short 

 piece of wire around a rock or piece of wood, bury this underneath the 

 fence and fasten the bottom strand of the fence down to the wires which 

 project above ground from the rock. For portable fencing we have used 

 thirtj'-inch woven wire which seems to be plenty high enough. A strand 

 of barbed wire affords effective restraint when placed underneath a 

 woven wire fence and is particularly desirable beneath permanent ones. 

 The Dipping Vat. — Fig. 50 represents the form of dipping vat in use 

 in the piggery, the location of which is shown in Fig. 39. This vat is 



