1.  The second Huxley Lecture of the Anthropological Institute, delivered by Francis Galton, D.C.L., D.Sc., F.R.S., on October 29, 1901.

3.  Read before the Sociological Society at a Meeting in the School of Economics and Political Science (London University), on May 16th, 1904. Professor Karl Pearson, F.R.S., in the chair.