^2b9 



Animals; — Ninth Report of Committee on Experiments on tlie 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; — VV. 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 of 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 Meteorological 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 Experiments on the Growth and Vitality of Seeds; — Major-Gen. 

 Briggs, Report on the Aboriginal Tribes of India ; — F. Ronalds, Report concerning the Ob- 

 servatory 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, Por- 

 tugal, 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, 1851. 



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

 mendations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-FIRST MEETING, at Ipswich, 



1851, Published at I6s. 6d. 



Contents: — Rev. Prof. Powell, on Observations of Luminous Meteors; — Eleventh Re- 

 port of Committee on Experiments on the Growth and Vitality of Seeds ; — Dr. J. Drew, on 

 the Climate of Southampton ; — Dr. R. A. Smith, on the Air and Water of Towns : Action of 

 Porous Strata, Water and Organic Matter ; — Report of the Committee appointed to consider 

 the probable Effects in an Economical and Physical Point of View of the Destruction of Tro- 

 pical Forests ; — A. Henfrey, on the Reproduction and supposed Existence of Sexual Organs 

 in the Higher Cryptogamous Plants; — Dr. Daubeny, on the Nomenclature of Organic Com- 

 pounds ; — Rev. Dr. Donaldson, on two unsolved Problems in Indo-German Philology ; 



Dr. T. Williams, Report on the British Annelida; — R. Mallet, Second Report on the Facts of 

 Earthquake Phenomena ; — Letter from Prof. Henry to Col. Sabine, on the System of Meteoro- 

 logical Observations proposed to be established in the United Stales; — Col. Sabine, Report 

 on the Kew Magnetographs ; — J. Welsh, Keporton the Performance of his three Magneto- 

 graphs during the Experimental Trial at the Kew Observatory ; — F. Ronalds, Report concern- 

 ing the Observatory of the British Association at Kew, from September 12, 1850 to July 31, 

 1851 ; — Ordnance Survey of Scotland. 



Together with the Transactions of the Sections, Prof. Airy's Address, and Recom- 

 mendations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-SECOND MEETING, at Belfast, 



1852, Published at 15s. 



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

 Report of Committee on Experiments on the Growth and Vitality of Seeds ; — Rev. Prof. 

 Powell, Report on Observations of Luminous Meteors, 1851-52; — Dr. Gladstone, on the In- 

 fluence of the Solar Radiations on the Vital Powers of Plants; — A Manual of Ethnological 

 Inquiry; — Col. Sykes, Mean Temperature of the Day, and Monthly Fall of Rain at 127 Sta- 

 tions under the Bengal Presidency ; — Prof. J. D. Forbes, on Experiments on the Laws of the 

 Conduction of Heat; — R. Hunt, on the Chemical Action of the Solar Radiations; — Dr. Hodges, 

 on the Composition and Economy of the Flax Plant; — W. Thompson, on the Freshwater 

 Fishes of Ulster; — VV. Thompson, Supplementary Report on the Fauna of Ireland; — W. Wills, 

 on the Meteorology of Birmingham; — J. Thomson, on the Vortex- Water- W heel ; — J. B. Lawes 

 and Dr. Gilbert, on the Composition of Foods in relation to Respiration and the Feeding of 

 Animals. 



Together with the Transactions of the Sections, Colonel Sabine's Address, and Recom- 

 mendations of the Association and its Committees. 



17* 



