CONTENTS. XVll 



Page 



7. On the Igneous Rocks of Llyn Padarn, Yr Eifl, and Boduan. By Pro- 

 fessor J. F. Blake, M.A., F.G.S G69 



8. On an Accurate and Rapid Method of Estimating the Silica in Igneous 

 Rocks. By J. H. Player 670 



9. On a new Form of Clinometer. By J. Hopkinson, F.L.S., F.G.S 670 



10. On Concretions. By H. B. Stocks 670 



11. On a Scrobicularia Bed, containing Human Bones, at Newton Abbot, 

 Devonshire. By W. Pexgelly, F.R.S., F.G.S 670 



Geology Sub-Section. 



1. The Comdon Laccolites. By W. W. Watts, M.A., F.G.S 670 



2. Fourth Report on the Fossil Phyllopoda of the Palaeozoic Rocks 671 



3. On the Discovery of Diprotodon Australia in Tropical Western Australia 



(Klmberley District). By Edwaed T. Haedman, F.R.G.S.I 671 



4. Twelfth Report on the Circulation of Underground Waters 672 



5. On the Stratigraphical Position of the Salt-Measures of South Durham. 



By Professor G. A. Lebottr, M.A., F.G.S 673 



6. On the Carboniferous Limestone of the North of Flintshire. By G. H. 

 Morton, F.G.S 673 



7. On the Classification of the Carboniferous Limestone Series : North- 

 umbrian Type. ByHuGHMiLiER,F.R.S.E., F.G.S 674 



8. The Culm Measures of Devonshire. By W. A. E. Ussher, F.G.S 676 



9. Denudation and Deposition by the Agency of Waves experimentally con- 

 sidered. By A. R. Hunt, F.G.S 676 



10. Third Report on the Rate of Erosion of the Sea Coasts of England and 

 AVales 677 



11, On Deposits of Diatomite in Skye. By W. IvisoN Macadam, F.O.S., and 



J. S. Grant Wilson, F.G.S 678 



Section D.— BIOLOGY. 

 THURSDAY, SEPTEMBER 2. 



Address by William Caeeuthers, Pres.L.S., F.R.S., F.G.S., President of 



the Section 679 



1. Report of the Committee for arranging for the Occupation of a Table at 



the Zoological Station at Naples 685 



2. Report of the Committee for continuing the Researches on Food-Fishes 

 and Invertebrates at the St. Andrews Marine Laboratory 685 



3. On the Value of the ' Type System ' in the Teaching of Botany. By Pro- 

 fessor Bayley Balfour, F.R.S 685 



4. Remarks on Physiological Selection, an Additional Suggestion on the 

 Origin of Species, by G. J. Romanes, F.R.S. By Henry Seebohm, 

 F.L.S 685 



5. On Provincial Museums, their Work and Value. By F. T. Mott, 

 F.R.G.S ' 686 



FRIDAY, SEPTEMBER 3. 



1. On some Points in the Development of Monotremes. By W. H. Cald- 

 well, M.A 686 



2. On the Morphology of the Mammalian Coracoid. By Professor Howes, 

 F.L.S 686 



3. On Rudimentary Structures relating to the Human Coracoid Process. 



By Professor Macalisier, F.R.S 687 



1886. a 



