CONTENTS. Vll 



Page 

 Second Report of the Committee, consisting of Dr. Garson, Mr. Pengelly, 

 Mr. F. "\V. lluDLER, and Mr. G. W. Bloxam (Secretary), appointed for tlie 

 purpose of investigating tlie Prebistoric Race in the Greek Islands 200 



Report of the Committee, consisting of Professor G. Carey Foster, Sir 

 William TnoitsON, Professor Ayrton, Professor J. Perry, Professor W. 

 G. Adams, Lord Rayleigh, Dr. O. J. Lodge, Dr. John IIopkinson, Dr. 

 A. MuiRHEAD, Afr. W. H. Preece, Mr. Herbert Taylor, Professor Everett, 

 Professor Schuster, Di-. J. A. Fleming, Professor G. F. Fitzgerald, 

 Mr. R. T. Glazebrook (Secretary), Professor Cerystal, Mr. H. Tomlin- 

 sON, Professor W. Garnett, Professor J. J. Thomson, Mr. W. N. Shaw, 

 and Mr. J. T. Bottomley, appointed for the purpose of constructing and 

 issuing practical Standards for use in Electrical Measurements 206 



Supplement to a Report on Optical Theories. By R. T. Glazebrook, M.A., 

 F.R.S 208 



First Report of the Committee, consisting of Mr. R. Etheridge, Dr. H. 

 Woodward, and Mr. A. Bell, for the purpose of reporting upon the 

 'Manure ' Gravels of Wexford 209 



Seventh Report of the Committee, consisting of Mr. R. Etheridge, Mr. Thomas 

 Gray, and Professor John Milne (Secretary), appointed for the purpose 

 of investigating the Volcanic Phenomena of Japan. (Drawn up by the 

 Secretary, 1887) '. 212 



Report of the Committee, consisting of Mr. H. Bauerman, Mr. F. W. Rudler, 

 Mr. J. J. H. Teall, and Dr. Johnston-Lavis, for the investigation of the 

 "\^olcanic Phenomena of Vesuvius and its neighbourhood. (Drawn up by 

 II. J. Johnston-Layis, M.D., F.G.S., Secretary) 226 



Third Report of the Committee, consisting of Dr. W. T. Blanford, Professor 

 J. W. JuDD, Mr. W. Carruthers, Dr. H. Woodward, and Mr. J. S. 

 Gardner, for the purpose of reporting on the Fossil Plants of the Tertiary 

 and Secondary Beds of the United Kingdom. (Drawn up bv the Secretary, 

 Mr. J. S. Gardner) '. 229 



Report of the Committee, consisting of Professor T. G. Bonney, Mr. J. J. H. 

 Teall, and Professor J. F. Blakl;, appointed to undertake the Micro- 

 scopical Examination of the Older Rocks of Anglesey. (Drawn up by 

 Professor J. F. Blake, Secretary) 230 



Second Report of the Committee, consisting of Professors Tilden and Arm- 

 strong (Secretary), appointed for the purpose of investigating Isomeric 

 Naphthalene Derivatives. (Drawn up by Professor Armstrong) 231 



Report of the Committee, consisting of Professor W. C. Williamson and 

 Mr. Cash, for the purpose of investigating the Carboniferous Flora of 

 Halifax and its neighbourhood. (Drawn up l^y Professor W. C, 

 "Williamson) 235 



Fifteenth Report of the Committee, consisting of Professors J. Prestwich, 

 W. Boyd DA^vKIN8, T. McK. Hughes, and T. G. Bonney, Dr. H. W. 

 Crosskey (Secretary), and Messrs. C. E. De Range, II. G. Fordham, 

 D. Mackintosh, W. Pengelly, J. Plant, and R. H. Tiddeman, appointed 

 for the piu-pose of recording the position, height above the sea, lithological 

 eliaracters, 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. (Drawn up by Dr. Crosskey, 

 Secretary) 236 



Report of the Committee, consisting of Mr. S. Bourne, Mr. F. Y. Edge- 

 worth (Secretary), Professor II. S. Foxwell, Mr. Robert Giffen, Pro- 

 fessor Alfred Marshall, Mr. J. B. Martin, Professor J. S. Nicholson, 

 Mr. R. H. Inglis Palgrave, and Professor H. Sidgwick, appointed for 

 4he purpose of investigating the best methods of ascertaining and measur- 



