History of the British Annelida;—T. C. Hunt, Results of Meteorological Observations taken 
at St. Michael’s from the Ist 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 ot 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 or tut TWENTY-FIRST MEETING, at Ipswich, 
1851, Published at 16s. 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 Climaie 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 GEconomical 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 States ;—Col. Sabine, Report 
on the Kew Magnetographs ;—J. Welsh, Report on 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 or trHE 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 Observaticns 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 CEconomy of the Flax Plant;—W. Thompson, on the Freshwater 
Fishes of Ulster;—W. Thompson, Supplementary Report on the Fauna of Ireland;—W. Wills, 
onthe Meteorology of Birmingham;—J. Thomson, on the Vortex-Water- Wheel ;—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. 
PROCEEDINGS orf 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 Ciconomy 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 
