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accessory feed factor avian biology cavere chicken ilex wood carving circular reciprocal lattice vector deadly poisonous compound distributed indexed access method edminster elliptic function of the first kind endorsement irregular gold bullion standard system Gram-Schmidt orthogonalization GrenvilleWilliam Wyndham Baron infinate laxity marginal utility theory picloram4-amino-356-trichloropicolinic acid reserve battery Sernur undeterminacy