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PROCEEDINGS of the TWENTY-THIRD MEETING, at Hull, 

 1853, Published at 10s. 6c?. 



Contents: — Rev. Prof. Powell, Report on Observations of Luminous Meteors, 1852-53; 



James Oldham, on the Physical Features of the Humher; — James Oldham, on the Rise, 



Progress, and Present Position of Steam Navigation in Hull; — SVilliam Fairbairn, Experi- 

 mental Researches to determine the Strength of Locomotive Boilers, and the causes which 

 lead to Explosion; — J. J. Sylvester, Provisional Report on the Theory of Determinants;— 

 Professor Hodges, M.D., Report on the Gases evolved in Steeping Flax, and on the Composition 

 and Economy of the Flax Plant; — Thirteenth Report of Committee on Experiments on the 

 Growth and Vitality of Seeds; — Robert Hunt, on the Chemical Action of the Solar Radiations; 

 — John P. Bell, ^^D., Observations on the Character and Measurements of Degradation of the 

 Yorkshire Coast; First Report of Committee on the Physical Character of the Moon's Sur- 

 face, as compared with that of the Earth; — R. Mallet, Provisional Report on Earthquake 

 Wave-Transits; and on Seismometrical Instruments; — William Fairbairn, on the Mechanical 

 Properties of Metals as derived from repeated Meltings, exhibiting the maximum point of 

 strength and the causes of deterioration ; — Robert Mallet, Third Report on the Facts of Earth- 

 quake Phenomena (continued). 



Together with the Transactions of the Sections, Mr. Hopkins's Address, and Recommenda- 

 tions of the Association and its Committees. 



PROCEEDINGS of the TWENTY-FOURTH MEETING, at Liver- 

 pool, 1854, Published at 18*. 



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



Major-General Chesney, on the Construction and General Use of Efficient Life-Boats; — Rev. 



Prof. Powell, Third Report on the present State of our Knowledge of Radiant Heat ; — Colonel 

 Sabine, on some of the results obtained at the British Colonial Magnetic Observatories; — 

 Colonel Portlock, Report of the Committee on Earthquakes, with their proceedings respecting 

 Seismometers; — Dr. Gladstone, on the influence of the Solar Radiations on the Vital Powers 

 of Plants, Part 2 ; — Rev. Prof Powell, Report on Observations of Luminous Meteors, 1853-54 ; 



Second Report of the Committee on the Physical Character of the Moon's Surface ; — W. G. 



Armstrong, on the .Application of Water-Pressure Machinery ; — J. B. Lawes and Dr. Gilbert, 

 on the Equivalency of Starch and Sugar in Food ; — Archibald Smith, on the Deviations of the 

 Compass in Wooden and Iron Ships ; — Fourteenth Report of Committee on Experiments on 

 the Growth and Vitality of Seeds. 



Together with the Transactions of the Sections, the Earl of Harrowby's Address, and Re- 

 commendations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-FIFTH MEETING, at Glasgow, 

 1855, Published at \5s. 



Contents : — T. Dobson, Report on the Relation between Explosions in Coal- Mines and 

 Revolving Storms; — Dr. Gladstone, on the Influence of the Solar Radiations on the Vital Powers 

 of Plants growing under different Atmospheric Conditions, Part 3; — C. Spence Bate, on the 

 British Edriophthalma ; — J. F. Bateman, on the present state of our knowledge on the Supply 

 of W iter to Towns; — Fifteenth Report of Committee on Experiments on the Growth and 

 Vitality of Seeds ; — Rev. Prof. Powell, Report on Observations of Luminous Meteors, 1854-55 ; 

 ^Report of Committee appointed to^inquire into the best means of ascertaining those pro- 

 perties of Metals and effects of various modes of treating them which are of importance lo the 

 durability and efficiency of Artillery ; — Rev. Prof. Henslow, Report on Typical Objects in 

 Natural History; — A. Follett Osier, Account of the Self- Registering Anemometer and Rain- 

 Gauge at the Liverpool Observatory ; — Provisional Reports. 



Together with the Transactions of the Sections, the Duke of Argyll's Address, and Recoir.« 

 mendations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-SIXTH MEETING, at Chel- 

 tenham, 1856, Published at 18s. 



Contents: — Report from the Committee appointed to investigate and report upon the 

 effects produced upon the Channels of the Mersey by the alterations which within the last 

 fifty years have been made in its Banks; — J. Thomson, Interim Report on progress in Re- 

 searches on the Measurement of Water by Weir Boards; — Dredging Report, Frith of Clyde, 

 1856; — Rev. B. Powell, Report on Cbservations of Luminous Meteors, 1855-1856; — Prof. 

 Bunsen and Dr. H. E. Roscoe, Photochemical Researches ; — Rev. James Booth, on the Trigo- 

 nometry of the Parabola, and the Geometrical Origin of Logarithms ; — R. MacAndrew, Report 



