by V. K. Dawson and P. A. Gilderhus. Influences of selected environmental factors on the activity of a prospective fish toxicant, 2-(Digeranylamino)-ethanol, in laboratory tests / by C. A. Launer and T. D. Bills. Toxicities of the lampricides 3-trifluoromethyl-4-nitrophenol (TFM) and the 2-aminoethanol salt of 2',5-dichloro-4'-nitrosalicylanilide (Bayer 73) to four bird species / by R. H. Hudson