Post Lot Text
First edition, offprint issue of Mendel's theory of hereditary characteristics, the foundation of the study of genetics. Before Mendel it was generally thought that parental characteristics were equally melded in their offspring. This paper reports the results of Mendel's ten years of experimental work on artificial plant hybridization, during which he followed a program designed to test his working hypothesis that hereditary matter is discrete and particulate. The discovery of the Mendelian ratios has been called the most significant event in the history of genetics. Mendel read his paper to the small local natural history society, which published it in their journal of rather limited circulation. The Mosès copy is one of the forty offprints that where produced, less than a dozen of which appear to survive. In the finest possible condition.