58 



worm eggs in Iheiii iiuiv lir killed. Tliis can be done 

 by disiufecting tbem with a strong solution of carbolir 

 acid, quicklime, or as Dr. Stiles suggests, by keeping 

 them iu a dry place for several months or through the 

 winter, for it is probal)le that tliey can not withstand 

 tliis treatment. 



If fowls are raised on fresh nucontaminated land 

 there is but little danger that they will become in 

 fected. 



Dr. V. A. Moore, of 1he P.urenu of Animal Tudusfry. 

 lias recently called attention tO' a jx'cnliar disease of 

 chickens that is characterized by the development of 

 small nodules in the walls of the intestine. These 

 nodules vvcie aliout a sixth of an inch in diameter and 

 quite liard. "Wluu opened it is found that the larger 

 ones contain greenish pus. These nodules were ])ro- 

 duced by a small tf peworm recognized as Davaincn tet- 

 ragona. This dis *ase has been recogniized iu fowls 

 frciii the District >f Columbia, North Carolina and 

 \'ii'5iinia but has not as yet been discovered among tin- 

 ]ionltry of Pennsylvania. It is quite destructive. 



2. SUCKING WORMS— TKE:\rATODEJ- 



These wc^rms are of an oval shape, have rathei' 

 plump bodies and ai-e provided on their ventral sur 

 faces with suckers by means of Avhich they attach 

 themselves to the part they are in contact with. 



There are several species that infest the domestic 

 fowl but it is not known that any of them are very prev- 

 alent or veiw destructive in this country. Their mode 

 of development is similar to that of tapeworms; thai 

 is, it is necessary for the embryo to pass through an 



