PROCEEDINGS of the SEVENTEENTH MEETING, at Oxford, 



1847, Published ai ISs. 



Contents :— Prof. Langberg, on Ihe Specif:* Gravity of Sulphuric Acid ut different de- 

 grees of dilution, and on the relation whicli exists between the Development of Heat and the 

 coincident contraction of Volume in Sulphuric Acid when mixed wiili Water; — 11. Hunt, 

 Researches on the Influence of the Solar Rays on the Growth of Plants ; — R. Mallet, on 

 the Facts of Earthquake Phaenoniena ; — Prof. Nilsson, on the Primitive Inhabitants of Scan- 

 dinavia; — W. Hopkins, Report on the Geological Theories of Elevation and Earthquakes; 

 — Dr. W. B. Carpenter, Report on the Microscopic Structure of Shells ; — Rev. W. 'VVhewell and 

 Sir James C. Ross, Rei>ort upon the Recommendation of an Expedition for the purpose of 

 completing our knowledge of the Tides ; — Dr. Schunck, on Colouring Matters ;• — Seventh Re- 

 port of the Committee on the Vitality of Seeds ; — J. Glynn, on the Turbine or Horizontal 

 Water-Whcel of France and Germany ; — Dr. R. G. Latham, on the present state and recent 

 progress of Ethnographical Philology ; — Dr. J. C. Prichard, on Ihe various methods of Research 

 which contribute to the .'Advancement of Ethnology, and of the relations of that Science to 

 other branches of Knowledge; — Dr. C. C. J. Bunsen, on the results of the recent Egyptian 

 researches in reference to Asiatic and African Ethnology, and the Classifieation of Languages; 

 —Dr. C. Meyer, on the Importance of the Study of the Celtic Language as exhibited by the 

 Modern Celtic Dialects still extant; — Dr. Max Miiller, on the Relation of the Bengali to the 

 Arian and Aboriginal Languages of India; — W. R. Birt, Fourth Report on Atmospheric 

 Waves ; — Prof. W. H. Dove, Temperature Tables ; with Introductory Remarks by Lieut.-Col. 

 E. Sabine ; — A. Ernian and H. Petersen, Third Report on the Calculation of the Gaussian Con- 

 stants for 1829. 



Together with the Transactions of the Sections, Sir Robert Harry Inglis'a Address, and 

 Recommendations of the Association and its Committees. 



PROCEEDINGS of the EIGHTEENTH MEETING, at Swansea, 

 184-8, Published at 9s. 



Contents: — Rev. Prof. Powell, A Catalogue of Observations of Luminous Meteors; — 

 J. Glynn, on AVater-pre.ssure Engines ; — R. A. Smith, on the Air and Water of Towns ; — Eighth 

 Report of Committee on the Growth and Vitality of Seeds ; — W. R. Birt, Fifth Report on At- 

 mospheric Waves ; — E. Schunck, on Colouring Matters ; — J. P. Budd, on the advantageous use 

 made of tlic gaseous escape from the Blast Furnaces at the Ystalyfera Iron Works; — R. Hunt, 

 Report of progress in (lie investigation of the Action of Carbonic Arid on the Growth of 

 Plants allied to those of the Coal Formations ; — Prof. H. W. Dove, Supplement to the Tem- 

 perature Tables printed in the Re])ort of tlie British Association for 1847 ; — Remarks by prof. 

 Dove on his recently constructed Maps of the Monthly isothermal Lines of the Globe,' and on 

 some of the principal Conclusions in regard to Climatology deducible from them ; with an in- 

 troductory Notice by Lt.-Col. E. Sabine ; — Dr. Daubeny, on the progress of the investigation 

 on the Influence of Carbonic Acid on the Growth of Ferns; — J. Phillips, Notice of further 

 progress in Anemoinctrical Researches; — Mr. Mallet's Letter to the Assistant-General Secre- 

 tary; — A. Ernian, Second Report on the Gaussian Constants; — Report of a Committee 

 relative to the expediency of recommending the continuance of the Toronto Magnetical and 

 Meteorological Observatory until December 1850. 



Together with the Trai\sactions of the Sections, the Marquis of Northampton's .\ddress, 

 and Recommendations of the Association and its Committees. 



PROCEEDINGS OF the NINETEENTH MEETING, at Birmingham, 

 184-9, Published at lOs. 



Contents : — Rev. Prof. Powell, A Catalogue of Observations of Luminous Meteors ;— Earl 

 of Rosse, Notice of Nebula: lately observed in the Six-feet Reflector; — Prof. Daubeny, on the 

 Influence of Carbonic Acid Gas o.i the health of Plants, especially of those allied to the Fossil 

 Remains found in the Cor\l I'orniation ; — Dr. Andrews, Report on the Heat of Combination ; 

 — Report of the Committee on the Registration of the Periodic Phaenomena of Plants and 

 Animals; — Ninth Report of Committee on Experiments on the Growth and Vitality of Seeds; 



F. Ronalds, Report concerning the Observatory of the British Association at Kew, from 



Aug. 9, 1848 to Sept. 12, 1849 ; — R. Mallet, Report on the Experimental Inquiry on Railway 

 Bar Corrosion ; — W. R. Ilirt, Report on the Discussion of the Electrical Observations at Kew. 



Together with the Transactions of the Sections, the Rev. T. R. Robinson's Address, and 

 Recommendations of the Association and its Committees, 



