Discovered in coal tar: T. Anderson, Ann. 60, 86 (1846). Physical data: B. A. Middleton, J. R. Partington, Nature 141, 516 (1938). Acute toxicity study: H. F. Smyth Jr. et al., Arch. Ind. Hyg. Occup. Med. 4, 119 (1951). Books: H. Maier-Bode, Das Pyridin und Seine Derivate in Wissenschaft und Technik (Edwards Bros., Ann Arbor, Mich., 1943); Hill in Chemistry of Coal Utilization vol 2, H. H. Lowry, Ed. (Wiley, New York, 1945), Chapter 27; The Chemistry of Heterocyclic Compounds vol. 14, a series of books entitled “Pyridine and its Derivatives”: Parts 1-4, E. Klingsberg, Ed. (1960-1964); Suppl. Parts 1-4, R. A. Abramovitch, Ed. (1974-1975); Part 5, G. R. Newkome, Ed. (1984) (Wiley-Interscience, New York). Review: G. L. Goe in Kirk-Othmer Encyclopedia of Chemical Technology vol. 19 (Wiley-Interscience, New York, 3rd ed., 1982) pp 454-483. Review of commercial synthesis and uses of pyridine and derivatives: D. J. Berry, Spec. Chem. 3, 13 (1983); of occurrence of pyridine and derivatives in foods, tobacco and essential oils: G. Vernin, Perfum. Flavor. 7, 23-26 (1982); of use in the study of surface properties of transition metal oxides: M. C. Kung, H. H. Kung, Catal. Rev. Sci. Eng. 27, 425-460 (1985). Review of toxicology and environmental fate: A. Jori et al., Ecotoxicol. Environ. Saf. 7, 251 (1983); and human exposure: Toxicological Profile for Pyridine (PB93-110831, 1992) 108 pp.