||Two offprints The Numerical Relations in the Crossing over of the Genes, with a Critical Examination of the Theory That the Genes Are Arranged in a Linear Series and The Numerical Results of Diverse Systems of Breeding
||Jennings, H. S.
||Offprints from Genetics, 1923 and
|| The Numerical Relations-- Genetics, 1923 Sep; 8(5): 393-457 The Numerical Results-- Genetics, 1: 53-89, January 1916. Both very good with prior owner's stamp front cover. 2 offprints. We have a few sets. The scan is of one of the copies available. All are in very good condition. Science. Genetics. *