CONTENTS. y 



Pago 

 Underground Waters in the Permian, New Red Sandstone, and Jurassic 

 Formations of England, and the Quantity and Character of the Water sup- 

 plied to towns and districts from those formations 87 



.•Second Report of the Committee, consisting of Professor W. C. Williamson 

 and Mr. W. H. Bailt, appointed for the purpose of collecting and reporting 

 on the Tertiary (Miocene) Flora, &c., of the Basalt of the North of Ireland. 

 Drawn up by William Hellier Bailt, F.L.S., F.G.S., M.R.I.A, 

 (Secretary) 107 



Eighth Report of the Committee, consisting of Professor Prestwich, Professor 

 Hughes, Professor W. Boyd Dawktns, the Rev. H. W. Crossket, Professor 

 L. 0. MiALL, Messi-s. D. Mackintosh, R. H. Tibdeman, J. E. Lee, J. Plant, 

 W. Pengellt, Dr. Deane, W. Moltnetjx, and Professor Bonnet, ap- 

 pointed for the purpose of recording the position, height ahove 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. Drawn up by the Rev. 

 H. W. Ckossket, Secretary 110 



Report of the Committee, consisting of Captain Abnet, Professor W. G. 

 Adams, and Professor G. Caret Foster, appointed to carry out an Investi- 

 gation for the purpose of fixing a Standard of White Light. Drawn up by 

 Captain Abnet (Secretary) 119 



Report of the Anthropometric Committee, consisting of Dr. Faer, Dr. Beddoe, 

 Mr. Brabrook (Secretary), Sir George Campbell, IMr. F. P. Fellows, 

 Major-Genei-al A. L. F. Pitt-Rivers, Mr. F. Galton, Mr. J. Park 

 Harrison, ]Mr. James Hetwood, ]\lr. P. Halleit, Professor Leone Levi, 

 Dr. F. A. Mahomed, Dr. Mtjirhead, Sir Rawson Rawson, Mr. Charles 

 Roberts, and Professor Rolleston 120 



Report of the Committee, consisting of Dr. Pte-Smith, Professor M. Foster, 

 and Professor Bitrdon Sanderson (Secretary), appointed for the pui'pose of 

 investigating the Influence of Bodily Exercise on the Elimination of Nitro- 

 gen (the experiments conducted by Mr. North) 159 



Second Report of the Committee, consisting of Mr. C. Spence Bate and Mr. 

 J. Brooking Rowe, appointed for the purpose of exploring the Marine 

 Zoology of South Devon 160 



Report of the Committee, consisting of Dr. M. Foster, Professor Rolleston, 

 ^Ir. Dew-Smith, Professor Huxlet, Dr. Carpenter, Dr. Gwtn Jeferets, 

 Mr. Sclater, Mr. F. M. Balfour, Sir C. Wyville Thomson, Professor 

 Rat Lankester, and Mr. Perot Sladen (Secretary), appointed for the 

 purpose of arranging for the occupation of a Table at the Zoological Station 

 at Naples 161 



Report on accessions to our knowledge of the Chiroptera during the past two 

 years (1878-80). By G. E. Dobson, M.A., M.B., &c 169 



Preliminaiy Report of the Committee, consisting of Professor AV. E. Artton 

 (Secretary), Dr. 0. J. Lodge, Mr. J. E. H. Gordon, and Mr. J. Perrt, 

 appointed for the purpose of accurately measuring the specific inductive 

 capacity of a good Sprengel Vacuum, and the specific resistance of gases 

 at dififerent pressiu-es 197 



Comparison of Cui-ves of the Declination Magnetographs at Kew, Stonyhurst, 

 Coimbra, Lisbon, Vienna, and St. Petersbm-g. By Professor W. Grtlls 

 Adams, F.R.S 201 



First Report of the Committee, consisting of Professor A. Leith Adams, the 

 Rev. Professor Haughton, Professor W. Botd Dawkins, and Dr. John 

 Evans, appointed for the purpose of exploring the Caves of the South of 

 Ireland 200 



