. Fig. So—Mild Nodular Venereal Disease. Heifer. /, Vulva; 2, clitoris surrounded bv nodules ; j, hymeneal scar ; /, vagina. Under the prevailing conditions in American dairy herds, and presumably in the dairy herds of the world, calves usu- ally develop clinical signs of the disease at from four to twelve weeks of age, and from that time through adult life to old age present a series of interesting vacillations of in- tensity, so great that various writers have designated the disease as acute, subacute, chronic, cured, sound, etc. In the newborn heifer calf, the vulvar mucosa is usually

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Keywords: ., bookcentury1900, bookdecade1920, booksubjecthorses, bookyear1921