CONTENTS. V 



Page 



Mr. John Dalton on the Phosphates and Arseniates 40 



on Microcosmic Salt 40 



on a new and easy Method of Analysing Sugar 40 



Professor Nassk on the Composition of the Blood and Bones of Domestic 



Animals 40 



Mr. Wm. Blyth on the Manufacture of Sulphuric Acid 40 



Mr. John Davies on the Manufacture and Purification of Gases obtained from 



Coal - 40 



Professor Schonbein on a peculiar Condition of Iron 40 



Mr. C. Wye Williams on the Advantages and Disadvantages of Hot Air in 



effecting the Combustion of Coal 40 



Mr. W. Lucas on the Production of an Artificial Copper Pyrites 40 



Mr. A. Booth on some Fires produced from Spontaneous Combustion 40 



Professor T. Graham on some Thermo-chemical Researches 40 



GEOLOGY AND PHYSICAL GEOGRAPHY. 



Professors H. D. and W. B. Rogers on the Physical Structure of the Appala- 

 chian Chain, as exemplifying the Laws which have regulated the elevation of 

 great Mountain Chains generally 40 



Rev. Mr. Schoolcraft on the Production of Sand Storms and Lacustrine 

 Beds, by causes associated with the North American Lakes > 42 



Mr. Richard King on the Geography of the North-west Coast of America... 44 



Mr. R. I. Murchison's Notice of a Memoir on the Geology of the Western 

 States of North America, by David Dale Owen, M.D., of Indiana 44 



on the Geological Structure of Russia (delivered at an 



Evening Lecture) 45 



Professor Adolphe Erman's Contributions to a Geological Sketch of North 

 Asia 46 



Mr. John S. Dawes on the Occurrence of Vegetable Remains, supposed to be 

 Marine, in the New Red Sandstone 4? 



Mr. John Phillips on the Microscopic Structure of Coal 47 



Mr. W. C. Williamson on the Origin of Coal 48 



Mr. E. W. Binney on the Great Lancashire Coal Field 49 



Mr. Richard Griffith's Statement of the Fossils which have been discovered 

 in the several Members of the Carboniferous or Mountain Limestone of Ire- 

 land, with a view to show the Zoological identity of the whole Series, to- 

 gether with a Comparison of the Fossils which occur in the Mountain Lime- 

 stone of Ireland with those which have been obtained from the same Series 

 in Great Britain, and also with the Fossils of North and South Devon, illus- 

 trated by Maps, Sections, Drawings and Specimens 5] 



Mr. R. [. Murchison's Notice on the distinction between the Striated Surface 

 of Rocks and Parallel Undulations dependent on Original Structure 53 



Rev. D. Williams on the Stratified and Unstratified Volcanic Products of the 

 West of England 54 



Mr. Edwin Lankester on some peculiar Inorganic Formations and Fossils of 

 the Magnesian Limestone 55 



Mr. John Travis Clay on the Occurrence of Boulders in the Valley of the 

 Calder 55 



Mr. Hawkshaw's Notice of the Fossil Footsteps in the New Red Sandstone 

 Quarry at Lymm, in Cheshire 56 



Dr. Buckland's Notice of Perforations in Limestone 57 



■ on Recent and Fossil Semi-circular Cavities caused by air- 

 bubbles on the surface of soft clay, and resembling impressions of rain- 

 drops 57 



Rev. P. B. Brodie on the Discovery of Insects in the Lower Beds of Lias of 

 Gloucestershire 58 



Mr. Elias Hall's Notices of the Geology of Derbyshire and Neighbouring 

 Counties 58 



Mr. James Stark on the Structure and Mode of Formation of Glaciers 58 



