1850-1943 1890-1962 1891- 575 b bayesianstatisticaldecisiontheory biographies biography biologists biometry correspondence darwin england eugenics fisher fishersir genetic genetics grande-bretagne greatbritain harold jeffreys leonard mathematik naturalselection probabilities qh375f535n1983 ronaldaylmer1890-1962 selection statisticians statisticiansgreatbritainbiography statisticiens statisticsastopic statistiek wz100f535b1978