973 



REPORT OF THE SIXTY-NINTH MEETING, at Dover, 

 September, 1899, Published at £\ is. 



CONTENTS. 



Rales of the Association, Lists of Officers, Report of the Council, List of Com- 

 mittees, Grants of Money, &c xxix-cxxiv. 



Address by the President, Sir Michael Foster 3 



Report of the Corresponding Societies Committee 27 



Preliminary Report on Radiation from a Source of Light in a Magnetic Field . 6;^ 

 Report on the Method of determining Magnetic Force at Sea .... 64 

 Report of the Committee for the Establishment of a Meteorological Observa- 

 tory at Montreal 65 



Report on Tables of the G (r, i')-Integrals 65 



Report on the Progress of the Solution of the Problem of Three Bodies. By 



E. T. Whittakeb 121 



Report on the best methods of recording the Direct Intensity of Solar 



Radiation 159 



Report on the present State of our Knowledge in Electrolysis and Electro- 

 chemistry 160 



Report on the Calculation of certain Mathematical Functions .... 160 



Fourth Report on Seismological Investigations . . . . . . .161 



Report on the Application of Photography to the Elucidation of Meteorological 



Phenomena 238 



Report on Electrical Standards 240 



Report on the Heat of Combination of Metals in the Formation of Alloys . . 24(5 



Report on Meteorological Observations on Ben Nevis 250 



Report on the Establishment of a Uniform System of recording the Results of 



the Chemical and Bacterial Examination of Water and Sewage . . . 255 



Interim Report on the Bibliography of Spectroscopy 25(> 



Report on the Preparation of a New Series of Wave-length Tables of the Spectra 



of the Elements and Compounds 257 



Report on the Relation between the Absorption Spectra and Chemical Constitu- 

 tion of Organic Substances 316 



Report on the Teaching of Science in Elementary Schools .... 359 



Report on Isomeric Naphthalene Derivatives .... . . 362 



Report on the Action of Light upon Dyed Colours 363 



Report on the Life-zones in the British Carboniferous Rocks .... 371 

 Report on the Conditions under which Remains of the Irish Elk are found in 



the Isle of Man 376 



Tenth Report on Photographs of Geological Interest in the United Kingdom . 377 



Report on the Erratic Blocks of the British Isles 398 



Report on the Ossiferous Caves at Uphill, near Weston 402 



Fifteenth Report on the Fossil Phyllopoda of the PalsBOzoic Rocks . . . 403 



Report on the Registration of Type Specimens of British Fossils . . . 405 



Report on the Ty Newydd Caves, Tremeirchion, North Wales .... 40(5 



Report on the Canadian Pleistocene Flora and Fauna 411 



Report of the Committee appointed to make Photographic and other Records 



of the Disappearing Drift Section at Moel Tryfaen 414 



Report of the Committee appointed to promote the Systematic Collection of 



Photographic and other Records of Pedigree Stock 424 



Report on the Compilation of an Index Animalium 429 



Report on the Construction of a Circulatory Apparatus for keeping Aquatic 



Organisms under definite Physical Conditions 431 



Report on the Occupation of a Table at the Zoological Station at Naples . . 431 



Ninth Report on the Zoology of the Sandwich Islands 436 



Report on Investigations made at the Slarine Biological Laboratory, 



Plymouth 437 



Final Report on the present State of our Knowledge of the Zoology and Botany 

 of the West India Islands, and on the steps taken to investigate ascer- 

 tained Deficiencies in the Fauna and Flora 441 



Report on Zoological and Botanical Publication 444 



