218 
PROCEEDINGS or tHE TWENTY-THIRD MEETING, at Hull, 
1853, Published at 10s. 6d. 
ConTENTs :—Rev. Prof. Powell, Report on Observations of Luminous Meteors, 1852-53; 
—James Oldham, on the Physical Features of the Humber ;—James Oldham, on the Rise, 
Progress, and Present Position of Steam Navigation in Hull;—William 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 GEconomy 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, M.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 or tHe TWENTY-FOURTH MEETING, at Liver- 
pool, 1854, Published at 18s. 
. 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 Porflock, Report of the Committee on Earthquakes, with their proceedings respecting 
Seismometers ;—Dr. Gladstone, om 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 or tuE TWENTY-FIFTH MEETING, at Glasgow, 
1855, Published at 15s. 
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 Water to Towns ;—Fifteenth Report of Committee on Experiments on the Growth and 
Vitality of Seeds ;—Rev. Prof. Powell, Report cn 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 to the 
durability and efficiency of Artillery ;—Rev. Prof. Henslow, Report on Typical Objects in 
Natural History ;—A.- Follett Osler, 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 Recom- 
mendations of the Association and its Committees. 
PROCEEDINGS or 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 Jast 
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 Observations of Luminous Meteors, 1855-1856 ;—Prof, 
Bunsen and Dr. H. E. Roscoe, Photochemical Researches ;—Rev. James Booth, on the Trigo- 
