Barn Construction. 117 



troughs, but none of them that I know of answer 

 all the requirements, flushing at drinking time, 

 emptying, ~ and. keepi*# empty after and between 

 watering times. In preference to these I must still 

 recommend a trough that I used for several years 



Hinged W&ler Trough 8, Overflow . 



most satisfactorily. It is shown above. It is simply 

 a wooden or sheet-iron trough on hinges, or not 

 fastened to the opposite side of the manger. When 

 not in use, it is turned upside down; nothing 

 can get into it. It is thus kept absolutely clean. 

 When wanted for use, it is simply turned over in 

 front of the cattle and fits into notches cut in the 

 partitions separating the mangers. Then it is filled 

 by a faucet or a hose at one end. There is a hollow 

 plug B in the trough that takes care of the over- 



