Intestinal Worms 347 



after the animal has fasted. Animals to be treated 

 should be confined in a yard until after the worms have 

 been expelled, and no uninfested animals should be 

 allowed on the ground until it has been thoroughly 

 disinfected. It is seldom advisable to treat very weak 

 and debilitated lambs. When the whole of the tape- 

 worm has been expelled, the small, tapering head -end of 

 the worm can be found in the discharges if a careful 

 examination is made. The upper drawing in Fig. 53 

 shows the general appearance of the head of a 

 tape -worm. 



For tape-worms in dogs, give pulverized areca nut, 

 about two grains for every pound weight; or the 

 ethereal extract of male - shield fern, in one - half 

 dram doses combined with an ounce of castor oil, 

 for average sized dog. An excellent remedy for all in- 

 testinal worms in dogs, and especially the round- worms, 

 is a mixture of 



Turpentine 1 part 



Pine-tar . , 8 parts 



Raw linseed oil 8 parts 



The tar should be "cut" with the turpentine and then 

 thoroughly mixed with the oil. The dose is from one 

 to four ounces, depending on the size and age of the 

 animal. It is to be given on an empty stomach, after 

 the animal has fasted from eighteen to twenty -four 

 hours. Food and water are to be withheld for four 

 to six hours after the medicine has been given. 



In giving medicines containing oil, great care must 

 be taken to prevent choking. Small animals should be 



