TY - JOUR T1 - Mathematical Contributions to the Theory of Evolution. XI. On the Influence of Natural Selection on the Variability and Correlation of Organs JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 200 SP - 1 EP - 66 PY - 1903/01/01/ UR - http://dx.doi.org/10.1098/rsta.1903.0001 M3 - doi:10.1098/rsta.1903.0001 AU - Pearson, K. ER -