ANTIPARASITICS 165 



13. Oleum anisi. Principal remedy against vermin of house 

 birds; sprinkled or sprayed in 1 per cent, solution. Oleum cari has 

 the same action. 



14. Oleum terebinthinae. Oil of turpentine. A specific against 

 ticks. 



15. Acidum salicylicum. Salicylic acid. A specific against 

 herpes in 5-10 per cent, solution in alcohol. 



16. Alkalies. These are used to assist the action of mange 

 baths or dips. 



2. WORM REMEDIES. ANTHELMINTICS 

 Synonyms: Vermifuges, antentozoa, antitaenics; worm-expelling, worm- 

 destroying remedies; tapeworm remedies. 



Intestinal Worms. — Not all entozoa can be expelled from the 

 body by medicines. Distomse and echinococci in the liver and 

 lungs, cysticerci and trichinae in the muscles, giant palisade worms 

 (Eustrongylus gigas) in the pelvis of the kidneys, strongylus arma- 

 tus in aneurisms in the anterior mesenteric artery, ccenuri in the 

 brain, and some intestinal worms are not accessible to medi- 

 caments. But most of the intestinal worms can be effectively 

 removed by medicines. The parasites of the digestive apparatus 

 of greatest importance are: 



1. Tapeworms: tsenia cucumerina, serrata, marginata, coen- 

 urus and echinococcus, and bothriocephalus latus in dogs; tsenia 

 perfoliata, plicata and mamillana in horses; tsenia expansa and 

 o villa in sheep; tsenia expansa, denticulata and alba in cattle; 

 tsenia expansa in goats; taenia crassicollis and elliptica in cats; 

 tsenia infundibuliformis, etc., in birds. 



2. Round worms: ascaris megalocephala in horses, ascaris 

 marginata in dogs, ascaris mystax in cats, ascaris lumbricoides in 

 cattle and swine, heteracis inflexa, etc., in birds. 



3. Palisade worms: strongylus armatus and tetracanthus in 

 the intestinal canal of the horse; strongylus con tortus in the abo- 

 masum of sheep ^ (stomach-worm disease); dochmius trigonoceph- 

 alus in the intestine of the dog. 



P Also affects calves in the southern part of the United States.] 



