JV CONTENTS. 



Page 



Third Report of a Committee, consisting of E. C. C. Stanford, A. E. 

 Fletcher, J. Dewar, E. W. Parnell, T. R. Ogilvle, and Alfred H. 

 Allen (Secretary), on the Methods of estimating Potash and Phos- 

 phoric Acid in Commercial Products containing them, and on the 

 Statement of the Results. Drawn up hy Alfred H. Allen 26 



Report on the Present State of our Knowledge of the Crustacea. — Part 

 III. On the Homologies of the Dermal Skeleton (continued). By C. 

 Spence Bate, F.R.S. &c 36 



Third Report of the Committee for investigating the Circulation of the 

 Underground "Waters in the New Red Sandstone and Permian Forma- 

 tions of England, and the quantity and character of the Water supplied 

 to various towns and districts from these formations, including Report 

 on the South-Lancashire Wells, hy T. M. Reade. The Committee 

 consisting of Prof. E. Hell, Rev. H. W. Crosskey, C. E. De Rance, 

 Captain D. Galton, Prof. A. H. Green, Prof. R. Harkness, H. H. 

 Howell, W. Molyneux, G. H. Morton, T. Mellard Reade, Prof. 

 Prestwich, and W. W r HiTAKER. Drawn up hy C. E. De Rance 

 (Secretary). (Plate II.) 56 



Fifth Report of the Committee, consisting of Prof. Prestwich, Prof. 

 Harkness, Prof. Hughes, Prof. W. Boyd Dawkins, the Rev. H. W. 

 Crosskey, Messrs. L. C. Miall, G. H. Morton, D. Mackintosh, 

 R. H. Tiddeman, J. E. Lee, T. Plant, W. Pengelly, and Dr. Deane, 

 appointed 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 con- 

 nected with the same, and taking measures for their preservation. 

 Drawn up hy the Rev. H. W. Crosskey, Secretary 81 



Fourth Report of a Committee, consisting of Prof. A. S. Herschel, M.A., 

 F.R.A.S., andG. A. Lebour, F.G.S., on Experiments to determine the 

 Thermal Conductivities of certain Rocks, showing especially the Geo- 

 logical Aspects of the Investigation 90 



Report on Observations of Luminous Meteors during the year 1876-77, 

 by a Committee, consisting of James Glaisher, F.R.S., R. P. Greg, 

 F.G.S., F.R. A.S., C. Brooke, F.R.S., Prof. G. Forbes, F.R.S.E., F.R A .S., 

 Walter Flight, D.Sc, F.G.S., and Prof. A. S. Herschel, M.A., 

 F.R.A.S. Drawn up by Prof. Herschel (Secretary) 98 



Tenth Report of the Committee, consisting of Prof. Everett, Sir W. 

 Thomson, F.R.S., Prof. J. Clerk Maxwell, F.R.S., G. J. Stmoxs, 

 F.M.S., Prof. Ramsay, F.R.S., Prof. A. Geikie, F.R.S., James 

 Glaisher, F.R.S., W. Pengelly, F.R.S., Prof. Hull, F.R.S., Prof. 

 Ansted, F.R.S., Prof. Prestwich, F.R.S., Dr. C. Le Xeye Foster, 

 F.G.S., Prof. A. S. Herschel, F.R.A.S., G. A. Lebour, F.G.S., A. B. 

 Wynne, F.G.S., W. Galloway, and Joseph Dickinson, F.G.S., ap- 

 pointed for the purpose of investigating the Rate of Increase of 

 Underground Temperature downwards in various Localities of Dry 

 Land and under Water. Drawn up by Prof. Everett, Secretary . . 194 



