Chapter I Raleigh (1552–1618); Chapter II Raleigh (1552–1618); Chapter III John Graunt (April 1620–April 1674), William Petty (1623–1687); Chapter IV Halley (1656–1742); Chapter V Süssmilch; Chapter VI David Hume (1711–1776); Chapter VII Richard Price (1723–1791); Chapter VIII Authur Young (1741–1820); retrospect Retrospect;
James Bonar- Lectures delivered in the Galtonian Laboratory, University of London, under the Newmarch Foundation, February 11 to March 18, 1929, with two additional lectures and with references to authorities