ROSTELLIIM. The name given to the re tractile sucking tube of apterous insects.
ROT. This is a name given to a disease in sheep, when infected with the fluke, distomurn Lanceolatqm, and Fasciola Hepatica which inhabit the gall bladder and ducts, and passes to the substance of the liver. Once the disease becomes apparent, immediate remedies must be used. This is known by the comjunctiva, or membrane covering the eye-ball in front, snd lin it, becoming pale and yellow; a healthy sheep it is brilliantly red and is of a natural color. As the disease progresses the sheep become pot bellied, rough, ragged, and finally die. When developed there is no cure. As a preventive, or in the very early stages of the disease, give every fourth day for two weeks a wine-glass full of the following mixture, and several hours he'ore food is given : Take one and oue-half ounces saltpetre, one ounce powdered ginger, one-half ounce carbonate of iron, one pound salt, three quarts boiling water, mix, and when nearly cool, add nine ounces spirits of turpentine, bottle for use, and shake well before giving it. Badly
drained pastures, musty hay or that badly cured, are supposed to be favorable to the flukes. Keep sheep in high, solid, well-drained pastures, feed plenty of salt, and if the fields are suspected keep the sheep off the pasture except when the grass is free from rnoisture. The foot and mouth disease in cattle is sometimes incorrectly called rot, and, also, hoof rot—the latter conies frorn un clean usage of cattle. (See Apthous fever.) Rot is a common term used to denote the decay of the growing fruit on the tree, from stings of insects followed by the attack of fungi, or from original epidemic fungi. There is no known remedy except a change of atmospheric conditions.