|| First edition. Offprints. 10 offprints from Nobel Prize winner Edward B. Lewis. Titles included: The Phenomenon of Position Effect reprinted from Advances in Genetics, Vol. III, 1950 (Hampton L. Carson stamp front cover); Pseudoallelism and Gene Evolution Reprinted from Cold Spring Harbor Symposium (1951) Hampton L. Carson stamp; Pseudoallelism and the Gene Concept Reprinted from Caryologia Vol. suppl. 1954; The Pseudoallelism of White and Apricot in Drosophila Melanogaster (1952) reprinted from Proceedings of the National Academy of Sciences, Vol. 38. No. 11, pp. 953-961. November 1952, Hampton L. Carson stamp; The Theory and Application of a New Method of Detecting Chromosomal Rearrangements in Drosophila Melanogaster reprinted from The American Naturalist July-August 1954; Some Aspects of Pseudallelism reprinted from The American Naturalist March-April 1955; Leukemia and Ionizing Radiation reprinted from Science, May 17, 1957; Genetic Control and Regulation of Developmental Pathways reprinted from Role of Chromosomes in Development 1964, Hampton L. Carson stamp; Genes and Developmental Pathways reprinted from Zoologist, 1963, Hampton L. Carson stamp; Genes and Gene Complexes reprinted from Heritage From Mendel (1967), Hampton L. Carson stamp. In very good or better condition. Nobel Prize. Science. Genetics.