19 



to mange, or scabies, by being herded with those affected, showed 

 much improvement in condition soon after dipping, although they had 

 not shown distinct evidence of being affected with mange. 



TANK 4FT. 8IN. WIDE 

 9" LONG 

 8" DEEP 



FIG. 5. Tank with heating appliance. 

 TANK WITH HEATING APPLIANCE. 



In some localities where steam for heating the liquid in the dip- 

 ping tank is not readily available, an oblong radiator made of heavy 

 galvanized iron, set inside of the tank 1 inch from the side, is success- 

 fully used. This radiator, or heater, should be set so that the dip 

 may circulate around it, with the furnace as shown in the figure. 

 The furnace is made of stone and should be 26 inches wide inside and 

 8 feet long. On top a cooking vat is placed, made of 14-inch plank 

 on the sides and a galvanized iron bottom 30 inches wide. The cook- 

 ing vat is 8 feet long by 14 inches high and 30 inches wide. The 

 radiator is connected with the furnace by a 6-inch pipe. Heat circu- 

 lation is established by means of a stack leading out and up from near 

 the farther end of the radiator (see diagram). Galvanized stovepipe 

 may be used for the stack. The cage is made of the usual width 

 3 feet 6 iiches wide outside and the tank 8 inches wider than when 

 steam heat is used, so that space may be allowed for the radiator. The 

 radiator must be protected by guides or standards guides in the 

 middle or, preferably, standards in the corners of the tank. 



152 



