XU CONTENTS. 



Page 



4. On the Identification of the Ink used in writing Lettera^ and Documents 

 as Evidence in Gases of Libel, Fore-ery, &c. By William Thomsou-, 

 RRS.E :, ; 549 



5. Note on Silver Sulphate. By Philip Bkaham, F.O.S 650 



6. The Efiects of Magnesia on Vegetation. By Maior-General Scoxx, C.B., 



F.R.S 550 



7. On the Action of Oils on Metals. By William H. Waxson, F.C.S 560 



■8. On Bleaching Powder Residue. By Fkederick W. Hodges, F.I.O., 

 F.O.S. Berlin 560 



Section C— GEOLOGY. 



THURSDA Y, A UG UST 26, 



Address by H. Clifton Sorbt, LL.D., F.R.S., F.G.S., President of the 



Section 565 



1. Sixth Report on the Circulation of the Underground Waters in the Per- 

 mian, New Red Sandstone, and Jurassic Formations of England, and 

 the Quantity and Character of the Water supplied to tovms and dis- 

 tricts from those Formations 573 



2. Notes on the Submarine Geology of the English Channel off the Coast of 

 South Devon. By Arthtje Roope Hunt, M.A., F.G.S 673 



a. On the Action of Carbonic Acid on Limestone. By Professor W, Boyd 

 Dawkins, M.A., F.R.S 573 



4. On the site of a Palaeolithic Implement Manufactory, at Crayford, Kent. 

 ByF. C. J. Spurkell, F.G.S 574 



-5. On the Hiatus said to have been foimd in the rocks of West Cork. By 

 G. H. KiNAHAN, M.R.I.A., Pres. Royal Geological Society, Ii-eland 574 



■6, Note on the Range of the Lower Tertiaries of East Suffolk. By W. H. 

 Dalton, F.G.S., of the Geological Survey of England 575 



FRIDAY, AUGUST 27. 



1. Sixteenth and concluding Report on the Exploration of Kent's Cavern, 

 Devonshire 575 



2. Report on the Exploration of Caves in the South of Ireland 675 



■3. Report on the Viviparous Nature of the Ichthyosam-ia 575 



4. Report on the Carboniferous Polyzoa 576 



5. Report on the ' Geological Record ' 576 



<3. On the relation to be established between Coast-line Directions represented 

 by Great Cii'cles on the Globe, and the Localities marked by Earthquakes 

 in Europe. By Jos. P. O'Reilly, O.E., Professor of Mining and Minera- 

 logy, Royal College of Science, Dublin 576 



7. On the Island of Torghatten. By Professor W. J. Sollas,M.A.,F.R.S.E., 



F.G.S 576 



8, On a Fragment of Mica Schist. By Professor W. J, Sollas, M.A., 

 F.R.S.E., F.G.S 577 



.9. On the Geological Age and Relations of the Siwahk and Pikermi Ver- 

 tebrate and Invertebrate Faunas. By W. T. Blantord, F.R.S., F.G.S... 677 



10. On the Sandstones and Grits of the Lower and Middle Series of the 

 Bristol Coalfield. By Edward Wexhered, F.G.S., F.C.S 679 



