CAUSE.—The parasite that produces Liver Fluke in sheep has an oblong, flat, leaf-like body, brownish in color, measuring from one-fourth to one-half inch in length. Sheep become infected with this Liver Fluke from grazing on low marshy pastures infected by the larvae of Liver Fluke. SYMPTOMS.—A sheep, when first infected with Liver Fluke, generally thrives as the parasites tend to stimulate the process of digestion, being located as they are in the liver, but eventually rumination becomes irregular, the sheep becomes anemic, weak and the visible mucous membranes of the mouth, nose and eyes become pale, bloodless, taking on a yellowish color as the disease progresses. Swellings will also appear under the jaw along the neck and under the lung cavity. The process of breathing becomes feeble and temperature irregular. Pregnant ewes will generally abort and nursing ewes’ milk will become so deprived of its nourishing properties that the lambs become emaciated, although not necessarily affected with the Liver Fluke. PREVENTION.—Move to non-infected pastures, supply the animals grazing on low marshy pastures with a liberal amount of salt, also introduce frogs, toads, carp, etc., into the marshy ponds, as they destroy the parasite in its first stages of development, feeding on their intermediate host, the snail. MEDICAL TREATMENT.—This is of little value. After an animal once becomes infected with the parasite, it never makes a complete recovery, although Calomel administered in ten grain doses every two or three weeks appears to have a very good effect in some cases, if fed freely on nitrogenous food and permitted to drink well of pure running water. LUNG FEVER. (_Pneumonia—Congestion of the Lungs—Pulmonary Apoplexy_) Acute congestion and inflammation of the spongy tissues of the lungs is frequently seen in sheep, the same as in other animals.