8 



FARMERS' BULLETIN 949. 



worms, but these are not so effective as chloroform or gasoline. If 

 the carbolic-acid solution is used, add 3 tablespoonfuls of the acid 

 to a quart of water. A stronger solution than this is liable to 

 injure the skin or the tender tissue of the wound. This solution can 

 be applied with a syringe or by using a brush or a swab. 



After tlie worms have been removed either pure pine tar or one 

 of the coal-tar disinfectants in proper dilution may be applied. 



DEHORNING CHUTES— PLANS AND METHODS. 



In drawing the accompanying plans for dehorning chutes (figs. 7, 

 8, !>. and 10) it was convenient to show all material sawed to dimen- 

 sion ; however, this does not mean that sawed lumber must be used in 

 constructing the chute. Rough posts and scrap planks of different 

 dimensions may be used, provided the posts are smooth enough to 

 nail to and the scrap planks are of sufficient strength to hold the 

 animal. 



Figures 5 and G show front views of two t3 r pes of chutes. Both 

 are very successful when properly built. The head clamp in both 



types is operated from 

 the side hy means of 

 a lever as shown in the 

 drawings. In figure 5 

 the position of the 

 lever and head-clamp 

 bars, when open, is 

 represented by dotted 

 lines. A short rope is 

 attached to the end of 

 the lever for pulling 

 it down and fastening 

 it when closed. The 

 lever may be of any 

 length desired, but 

 should not be so long 

 and heavy that it will 

 not allow the clamps 

 to open with their own weight. The arms fastened to the top of 

 the head-clamp bars may be made of strap iron V 2 to 2 inches 

 wide, in which case four bars are used. Wood also may be used, 

 in which case only two bars are used, one on each side of the lever. 

 The lower arms are best made of wood. "When the head-clamp 

 bins are closed they should be about 4 inches apart. Four-inch 

 blocks should be placed between the two bars at the crosspieces to 

 hold them steady. 



