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Ask a question or Order this book Browse our books Search our books Book dealer info | O'KANE,W.C.ET AL 1. Methods of Expressing Toxicity (with) 2. Toxicity of Nicotine,Heptylic Acid & Caproic Acid to Mosquito Larvae,Culex Pipiens,L. Durham, Agric.Exp.Sta.TB 58, Jun.1934. ill.w/4 tab.& 24 fig., 35p, 8vo stapled PB. VG. Offered for US$ 7.50 by: Frank Mikesh Rare and Out-of-Print Natural History Book - Book number: O17129-8699 | |||