938 



PROCEEDINGS of the EIGHTEENTH MEETING, at Swansea, 



1848, Published at 9s. 



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

 Meteors;— J. Glynn, on Water-pressure 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 Atmospheric Waves ;—E. Schunck, on Colouring 

 Matters ; — J. P. Budd, on the advantageous use made of the gaseous escape from tlie 

 Blast Furnaces at the Ystalyfera Iron Works; — R. Hunt, Report of progress in tlie 

 investigation of the Action of Carbonic Acid on the Growth of Plants allied to those 

 of the Coal Formations ; —Prof. H. W. Dove, Supplement to the Temperature Tables 

 printed in the Report of the 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 introductory Notice by Lieut.-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 Anemometrical Researches; — Mr. Mallet's 

 Letter to the Assistant-General Secretary; — A. Erman, Second Report on the 

 Gaussian Constants ; — Report of a Committee relative to the expediency of recom- 

 mending the continuance of the Toronto Magnetical and Meteorological Observatorv 

 until December 1850. 



Together with the Transactions of the Sections, the Marquis of Northampton's 

 Address, and Recommendations of the Association and its Committees. 



PROCEEDINGS of the NINETEENTH MEETING, at Birmingham, 



1849, Published at 10s. 



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

 Meteors ; — Earl of Rosse, Notice of Nebulas lately observed in the Six-feet Reflector ; 

 — Prof. Daubeny, on the Influence of Carbonic Acid Gas on the health of Plants, 

 especially of those allied to the Fossil Remains found in the Coal Formation ; — Dr. 

 Andrews, Report on the Heat of Combination ; — Report of the Committee on the 

 Registration of the Periodic Phenomena 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. Birt, 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. 



PROCEEDINGS op the TWENTIETH MEETING, at Edinburgh, 

 1850, Published at 15s. (Out of Print.) 



Contents:— R. Mallet, First Report on the Facts of Earthquake Phenomena ;— 

 Rev. Prof. Powell, on Observations of Luminous Meteors ;— Dr. T. Williams, on the 

 Structure and History of the British Annelida;— T. C. Hunt, Results of Meteoro- 

 logical Observations taken at St. Michael's from the 1st of January, 1840, to the 31st 

 of December, 1849 ; — R. Hunt, on the present State of our Knowledge of the 

 Chemical Action of the Solar Radiations ; — Tenth Report of Committee on Experi- 

 ments on the Growth and Vitality of Seeds ; — Major-Gen. Briggs, Report on the 

 Aboriginal Tribes of India ; — F. Ronalds, Report concerning the Observatory of the 

 British Association at Kew;— E. Forbes, Report on the Investigation of British 

 Marine Zoology by means of the Dredge ; — R. MacAndrew, Notes on the Distribution 

 and Range in depth of Mollusca and other Marine Animals, observed on the coasts 

 of Spain, Portugal, Barbary, Malta, and Southern Italy in 1849;- Prof. Allman, on 

 the Present State of our Knowledge of the Freshwater Polyzoa ; — Registration of 

 the Periodical Phenomena of Plants and Animals ; — Suggestions to Astronomers for 

 the Observation of the Total Eclipse of the Sun on July 28, 1861. 



Together with the Transactions of the Sections, Sir David Brewster's Address, 

 and Recommendations of the Association and its Committees. 



