Eugenics Laboratory Memoirs 13: Pearson, Karl, and Elderton, Ethel Mary. 1910. A Second Study of the Influence of Parental Alcoholism on the Physique and Ability of the Offspring. Being a Reply to Certain Medical Critics of the First Memoir and an Examination of the Rebutting Evidence Cited by Them (London: Dulau and Co.). 35 pp.