No. 4.] REPORT OF CATTLE BUREAU. 299 



sheep are kept in good condition, on high, well-drained 

 pastures, the}^ seem to be able to resist a few parasites, such 

 as the stomach worm (^Strong yJ us con(o)'fus), and the nodular 

 intestinal disease due to a little nematode known as the 

 Q:^so2)hagostoma GoJumhianum ; but when a Hock of goats 

 becomes infested with the contorted stomach worm, it will 

 often nearly destroy the flock. These parasites are not at 

 all uncommon, and may occur in any portion of the State. 

 In a recent article in the " Countr}^ Gentleman," Dr. D. 

 E. Salmon, former Chief of the United States Bureau of 

 Animal Industry, gives the following treatment for sheep 

 infested with stomach worms : — 



Coal-tar Creosote. — The remedy which luis been found most 

 effectual and satisfactory for the treatment of sheep affected 

 with stomach worms is coal-tar creosote. This is made into a 

 1 per cent, solution by mixing 1 ounce of the creosote with 99 

 ounces of water. The dose of this solution is 1 to 3 ounces for 

 lambs and 3 to 5 ounces for adult sheep, according to the size 

 of the animal. It is very destructive to stomach worms, and 

 by repeating the dose after two or three days have elapsed, the 

 sheep should be quite thoroughly freed from these parasites. 

 The creosote solution is soon diluted, however, by the liquids 

 of the stomach and intestines, and is also readily absorbed ; con- 

 sequently, it may not reach all parts of the intestines in sufficient 

 strength to destroy the worms which inhabit those organs. For 

 this reason, when the presence of intestinal w^orms is known or 

 suspected, it is best to add powdered thymol to the creosote 

 solution after the proper dose of the latter has been measured 

 out. The dose of the thymol is 30 grains for a lamb and 50 to 

 75 grains for older sheep. Tliymol is not very soluble, and for 

 that reason passes through the stomach and into the intestines 

 without being absorbed. It is therefore considered to be a 

 remedy especially adapted for intestinal worms. By combining 

 the coal-tar creosote and tliymol we have a mixture which may 

 be relied upon to destroy the round worms of both the stomach 

 and the intestines, with the exception of those worms which 

 are living within the walls of those organs, and whicli no med- 

 icine will reach. Gasoline has been used by many in treating 

 sheep and lambs for stomach worms, but it appears to be less 

 effective and not as safe as the remedies mentioned above. The 

 (lose for lambs is two teaspoonfuls, and should be given mixed 



