SELECTION AND MANAGEMENT. 71 



Just at the end of the tank there may be an 

 incline about 3 feet long covered with smooth 

 sheet metal, and this may be greased so that 

 when a sheep steps on it or is lifted upon it, 

 it will easily slide down to the plunge. 



A force of five men, two of whom keep the 

 dip mixed and replenished, and three of whom 

 put in and take out sheep, will readily dix) 

 100 in an hour, though if they have their 

 fleeces on they should drain for a longer time 

 than would make this practicable. It is not 

 often necessary to assist the sheep to climb out, 

 but there should be one man ready and watch- 

 ing with care to see that all are fully sub- 

 merged and none stay in too long. The writer 

 nas never seen pregnant ewes, handled with 

 care in the dipping vat, abort their lambs, and 

 has frequently dipped 500 without killing or 

 injuring one. 



The cheapest tank is made of galvanized 

 iron. The best is made of concrete, which will 

 endure forever if rightly made. 



SUMMAEY OF DIPPING. 



Dip every sheep when it comes to the farm 

 as soon as it is rested, especially with care 

 when it may have come by rail. 



AVhen scab infection is suspected, but none 

 is visible, dip once by simple and complete im- 

 mersion in a dip hot and strong enough. 



When scab is already in evidence let the af- 

 fected sheep soak in the dip for two minutes, 

 first having rubbed and loosened up the scabs. 

 After ten days dip again; always turn freshly 



