. Mature Fluke. which to pass the first stage of its existence. This is a mollusk, a species of snail, which inhabits fresh Avater mars^hes. The curious historj^ of this parasite is of great interest to the American shep- herd, because we have the bearer of it here and the creature itself. It is comparatively abundant in the marshes of the Northwest and has been found in the States of New York and Pennsylvania. In the former locality it has been found in the livers of deer and rabbits: and. in rabbits in Pennsylvania. It has also been found

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsheep, bookyear1900