President SIR HENRY HOLLAND, Bart. M.D. D.C.L. F.R.S. Treasurer — WILLIAM SPOTTISWOODE, Esq. LL.D. M.A. Treas. R.S. V.P. Secretary-HENRY BENCE JONES, M.A. M.D. D.C.L. F.R.S. MANAGERS. 1872-73. George Berkley, Esq. C.E. John Carrick Moore, Esq. M.A. F.R.S. William Pole, Esq. M.A. F.R.S. Sir W. Frederick Pollock, Bart. M.A. Robert P. Roupell, Esq. M.A. Q.C. D.C.L. V.P.R.S.-V.P. The Marquis of Salisbury, M.A. F.R.S. Chanc. Univ. Ox.-V.P. Chas. William Siemens, Esq. D.C.L. F.R.S. Sir Charles Wheatstone, D.C.L. F.R.S. VISITORS. 1872-73. John Charles Burgoyne, Esq. George Frederick Chambers, Esq. F.R.A.S. Erasmus Darwin, Esq. Edward Frankland, Esq. D.C.L. F.R.S. Thomas Williams Helps, Esq. M.A. Robt. Pilkington Linton, Esq. F.R.C.S. St. George Mivart, Esq. F.R.S. F.L.S. Edward Henry Moscrop, Esq. Professors. Professor of Natural Philosophy-JOHN TYNDALL, Esq. LL.D. F.R.S. &c. Professor of Chemistry-WILLIAM ODLING, Esq. M.A. F.R.S. Professor of Physiology -WILLIAM RUTHERFORD, M.D. F.R.S.E. Assistant Secretary and Keeper of the Library-Mr. Benjamin Vincent. Clerk of Accounts and Collector-Mr. Henry C. Hughes. Assistant in the Physical Laboratory---Mr. John Cottrell. Assistant in the Chemical Laboratory-Mr. Thomas Wills, F.C.S. CONTENTS. Page ix 18.-MR. J. F. BATEMAN-On the Subway to France 25.-PROFESSOR ROLLESTON-On the Character and In- fluence of the Anglo-Saxon Conquest of England, Jan. 20.-PROFESSOR TYNDALL-On the Colour of Water, and |