30 FARM APPLIAKCES. 



with this construction no straw or rubbish can get into 

 this covered portion to clog the outlet, and thus cause 

 overflow. This protection is usually sufficient in the 

 winter to prevent the outlet from freezing. But a plug 

 is inserted in the bottom of the trough, which can be 

 taken out when the trough needs cleaning, or in very se- 

 vere weather. 



Farmers who have never used a covered water trough, 

 and who have not been able to keep the water free from 

 leaves and mud in summer, and to prevent the trough 



Fig. 29. COVERED WATER TROUGH. 



becoming filled with snow and ice, will be glad of the 

 illustration (figure 29) of a covered trough, which can 

 be used on both sides. It should stand in the middle of 

 a yard, and the best way of supplying it is by a pipe car- 

 ried underground from a pump. It is supported on 

 crossed posts set in the ground and pinned together. 

 The trough has a central division, upon the top of 

 which the covers rest. When in use, the covers are let 

 down, and when not in use they rest upon the dividing 

 plank, as shown by the dotted lines, and as soon as the 

 stock is watered, the plug is drawn to let the water off. 

 This non-freezing trough should be made two feet 

 deep, eighteen inches wide, and fourteen feet long, and 

 constructed out of two-inch oak plank. Figure 30 is a 

 sectional side view of the trough. Over it is fitted a 

 double cover, with four-inch space, which extends to 

 within fourteen inches of the outer end. This part is 



