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-----------------------Clawson, A. B., and Marsh, Hadleigh, Larkspur or "Poison Weed."

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---------------------------------------------------------------------- Cicuta, or Water Hemlock. U.S.

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---------------------------------------------------------------------- Zygadenus, or Death Camas,

U. S. Dept. Agr., Bull. No. 125 May, 1915.

----------------------------------------------------------------------- Larkspur Poisoning of Livestock, U. S. Dept. Agr., Bull. 265, Sept., 1916.

----------------------------------------------------------------------- Lupines as Poisonous Plants,

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