206 POULTRY DISEASES AND THEIR TREATMKNT. 



Contagious. A disease which is communicable by direct contact. - 



Copulation. — Sexual intercourse. With fowls "treading." 



Cornea. — The hard transparent structure forming the anterior part of 



the eyeball. 

 Creolin. — A thick black liquid coal tar preparation. It has antiseptic 



properties. 

 Crcsol. — A coal tar product with antiseptic and germicidal properties. 

 Cyst. — A sac-like growth which usually contains a liquid or a semi-solid. 

 Demulcent. — A soothing mucilaginous or oily medicine. 

 Dermoid cyst. — A form of congenital cyst often containing skin-like 



structures. 

 Diuretic. — A medicine that increases the activity of the kidneys. 

 Bcehymoscs (ek-kim-o-ses). — Discoloration of the skin caused by blood 



outside of the blood vessels as in a bruise. 

 Emaciated. — Very lean or wasted condition of the body. 

 Enema. A liquid injection in the rectum or cloaca. 

 Enteritis. — Inflammation of the intestine. In human medicine confined 



chiefly to the small intestine. 

 Epidemic. — A disease that is widely prevalent in a community or locality. 

 Epidermis. — The outer or non-vascular layer of the skin. The cuticle. 

 Epithelioma. — A cancer or malignant tumor consisting chiefly of cells 



derived from the skin or mucous membrane. 

 Epithelinvi. — The covering or outer layer of the skin and mucous mem- 

 branes. 

 Ergot. — A fungus which afifects and finally replaces the seed of a cereal 

 grass. Used chiefly in connection with the ergot of 

 rye which is poisonous to poultry. Ergot as a drug 

 has the property of causing the mammalian uterus 

 to contract. 

 Etiology. — The causation of any disease. 

 Exudate. — A substance thrown out of the body or deposited in a tissue 



by a vital process. 

 Feces. — The excrement or undigested residue of the food discharged 



from the intestines. Dung. Droppings. 



Flagellate micro-organism. — Any minute microscopic organism which 



swims through the water by means of the lashing 



of one or more hair-like structures (flagella). 



Follicle. — See p. 157. 



Gall bladder. — The reservoir for the bile or gall secreted by the liver. 



It is readily seen on the upper side of the liver. 

 Gallus domesticus. — The scientific name for the domestic fowl. 

 Gangrene. — See p. 174. Gangrene of oviduct. 

 Gastritis. — Inflammation of the stomach. 



Hermaphrodite. — An organism which has both uiale and female re- 

 productive organs. 

 Hemorrhage. — Bleeding. A copious escape of blood from the vessels. 

 Hepatic. — Pertaining to the liver. 

 Hyperaemia. Excess of blood in any part of the body. 



