TY - JOUR T1 - 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. Homotypos in the Vegetable Kingdom JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 197 SP - 285 EP - 379 PY - 1901/01/01/ UR - http://dx.doi.org/10.1098/rsta.1901.0020 M3 - doi:10.1098/rsta.1901.0020 AU - Pearson, K. ER -