TY - JOUR T1 - Data for the Problem of Evolution in Man. IV. Note on the Effect of Fertility Depending on Homogamy JF - Proceedings of the Royal Society of London (1854-1905) VL - 66 SP - 316 EP - 323 PY - 1899/01/01/ UR - http://dx.doi.org/10.1098/rspl.1899.0106 M3 - doi:10.1098/rspl.1899.0106 AU - Pearson, K. ER -