. Fig. 17.—Young and Mature Redia. disease is very rare, and only by the aid of accidental causes, so that this disease, is a true pestilence, killing nearly every sheep attacked, and it is only by due means of prevention that it is possible to avoid, it. These are the drainage of wet pastures, the use of pure water from wells, and to put imported sheep through a sufficient course of quarantine; carefully burning all the manure made by them so as to destroy any possible source of infesting the land.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsheep, bookyear1900