Mathematical Contributions to the Theory of Evolution. IX.--On the Principle of Homotyposis and Its Relation to Heredity, to the Variability of the Individual, and to That of the Race. Part I.--Homotyposis in the Vegetable Kingdom

K. Pearson, A. Lee, E. Warren, A. Fry, C. D. Fawcett
1901 Proceedings of the Royal Society of London  
doi:10.1098/rspl.1901.0001 fatcat:r36xrbwmsjfkdd2fgmypppzyse