II.—Geological Map of London, showing Superficial Deposits. Compiled by J. B. Jordan, Esq., of the Mining Record Office, from the Published Maps and Memoirs of the Geological Survey of England and Wales, and from the Maps and Memoir accompanying “Reports of the Medical Officer of the Privy Council, 1866 to 1867,” by R. W. Mylne Esq., and W. Whitaker, Esq., B.A. Scale, one inch to a mile. London: E. Stanford.