"Roundworm" Quotes from Famous Books
... equorum).—This is the common large, yellowish roundworm (Pl. V, fig. 5), about the size of a lead pencil or larger, which may be found in horses almost anywhere in the United States. It occurs in the intestine and probably occasions little damage as a rule, except when present in large ... — Special Report on Diseases of the Horse • United States Department of Agriculture |