lxxiv REPORT — 1884. 



of Spectrum Analysis ; and that Professor W. Chandler Roberts be the 

 Secretary. 



Tbat Professor Sir H. E. Roscoe, Mr. Lockyer, Professors Dewar, 

 Liveing, Schuster, W. N. Hartley, and Wolcott Gibbs, Captain Abney, 

 and Dr. Marshall Watts be reappointed a Committee for the purpose of 

 preparing a new series of Wave-length Tables of the Spectra of the 

 Elements ; and that Dr. Marshall Watts be the Secretary. 



That Professor J. Prestwich, Professor T. McK. Hughes, and Mr. 

 W. Topley be reappointed a Committee for the purpose of assisting in the 

 preparation of an International Geological Map of Europe ; and that Mr. 

 W. Topley be the Secretary. 



That Professors J. Prestwich, W. Boyd Dawkins, T. McK. Hughes, 

 and T. G. Bonney, Dr. H. W. Crosskey, Dr. Deane, and Messrs. C. E. 

 De Ranee, H. G. Fordham, J. E. Lee, D. Mackintosh, W. Pengelly, J. 

 Plant, and R. H. Tiddeman be reappointed a Committee for the purpose 

 of recording the position, height above the sea, lithological characters, 

 size, and origin of the Erratic Blocks of England, Wales, and Ireland, 

 reporting other matters of interest connected with the same, and taking 

 measures for their preservation ; and that Dr. H. W. Crosskey be the 

 Secretary. 



That Sir L. Playfair, Professor Moseley, Admiral Sir E. Ommanney, 

 Mr. P. L. Sclater, and Mr. A. Sedgwick be a Committee for the purpose 

 of preparing a report on the aid given by the Dominion Government and 

 the Government of the United States to the encouragement of Fisheries 

 and to the investigation of the various forms of marine life on the coasts 

 and rivers of North America ; and that Mr. Sedgwick be the Secretary. 



That the Rev. Canon Tristram, the Rev. F. Lawrence, and Mr. 

 James Glaisher be reappointed a Committee for the purpose of pro- 

 moting the Survey of Palestine ; and that Mr. James Glaisher be the 

 Secretary. 



That the Committee, consisting of Dr. Gladstone (Secretary), Mr. 

 Wm. Shaen, Mr. Stephen Bourne, Miss Lydia Becker, Sir John Lubbock, 

 Dr. H. W. Crosskey, Sir Richard Temple, Sir Henry E. Roscoe, Mr. 

 James Heywood, and Professor Story Maskelyne be reappointed a Com- 

 mittee on Science Teaching in Elementary Schools. 



That Mr. Mollison be requested to report on the present state of our 

 knowledge of the Mathematical Theory of Thermal Conduction. 



That Mr. R. T. Glazebrook be requested to draw up a Report on 

 recent progress in Physical Optics. 



That Mr. J. J. Thomson be requested to draw up a Report on 

 Electrical Theories. 



That Mr. W. Topley be requested to continue his Report upon 

 National Geological Surveys. 



Communications ordered to be printed in extenso in the Annual 

 Report of the Association. 



Professor Schuster's paper, opening the discussion on the Connection 

 of Sunspots with Terrestrial Phenomena. 



Professor O. J. Lodge's paper, opening the discussion on the seat of 

 the Electromotive Force in the Voltaic Cell. 



Professor Bonney's paper ' On the Arcluean Rocks of Great Britain.' 



