PROCEEDINGS or tub SEVENTEENTH MEETING, at Oxford, 
1847, Published at 18$. 
Contents Prof. Langberg, on the Specific Gravity of Sulphuric Acid at different de¬ 
gree* of dilution, and on the relation which exists between the Development of Heat and the 
coincident contraction of Volume in Sulphuric Acid when mixed with Water;—R. Hunt, 
Researches on the Influence of the Solar Rays on the Growth of Plants ;—R. Mallet, on 
the Fact* of Earthquake Ptncnomcna ;—Prof. Nilsson, on the Primitive Inhabitant* of Scan¬ 
dinavia;—W. Hopkins. Report on the Geological Theories of Elevation and Earthquake*; 
—Dr. W. H. Carpenter, Report on the Mferoacopic Structure uf Shells;—Rev. W. Whewell and 
Sir Janie* C. Rox*, Hcport upon the Recommendation of an Expedition for the purpose of 
completing our knowledge of the Tides;—Dr. Schunck, on Colouring Matters Seventh Re¬ 
port of the Committee on the Vitality of Seed#;-—J. Glynn, on the Turbine or Horisontal 
Water-Wheel of France and Germany;—Dr. Ft. G. Latham, oh the preset,I state and recent 
progress of Ethnographies! Philology ;—Dr. J. C. Prichard, on the various methods of Research 
which contribute to the Advancement of Ethnology, and of the relation* of that Science to 
other branches of Knowledge; — Dr. C. C. J. Bunsen, on the results of the recent Egyptian 
researches in reference to Asiatic and African Ethnology, and the Classification of Languages; 
—Dr. C. Meyer, on the Importance of the Study of the Celtic Language a# exhibited by the 
Modern Celtic Dialect* still extant;—Dr. Max Muller, on the Rclutinn of the Bengali to the 
Arian and Aboriginal Languages of India; — W. It. Birt, Fourth Report on Atmospheric 
Waves;—Prof. W. H. Dove, Temperature Tables; with Introductory Remarks by LieuL-Col. 
E. Sabine;—A. Ernianand II. Petersen, Third Report on the Calculation of the Gaussian Con¬ 
stants for I82!>. 
Together with the Transactions of the Sections, Sir Robert Harry Inglis's Address, and 
Recommendations of the Association and its Committees. 
PROCEEDINGS of the EIGHTEENTH MEETING, at Swansea, 
1848, Published at Os. 
Content# ;—Rev. Prof. Puwcll, A Catalogue of Observations of Luminous Meteors;— 
J. Glynn, on Wnter-pr.. . Engines;— H. A. Smith, on the Alrohd Water of Towns;—Eighth 
R. port of Committer on the Growth and Vitality of Seeds;— W. U. Birt, Fifth Report on At- 
mmphrnr Wave# E. Schunck, on Colouring Matter*;—J. p. Rudd, tin the advantageous use 
m*(!c of the gaseous escape from the Blast Furnaces at the Vstalyfem Iron Works;—R. Hunt, 
Report of progress in the investigation of the Action of Carbonic Arid on the Growth of 
Plants allied to tho>c of the Coal Formations;—Prof. H. W. Dove, Supplement, to the Tem¬ 
perature Table* printed in the Report of the British Association for 1847 ; — Remarks by l’rof. 
Dov.- on his recently constructed Maps of the Monthly Isothermal Lines of the Globe, and on 
some of the principal Conclusions in regard to Climatology deductble from them ; with an in¬ 
troductory Notice by Lt-C'oL E. Sabine; — Dr. Dnubcny, on the progress of the investigation 
on the Influence of Carbonic Acid on the Growth of Ferns;—J. Phillip#, Noticd of further 
progress in Anemomctrical Researches;— Mr. Mallet's Letter to the Assistant-General Secre- 
tary; A. Erman, Second Report on the Gaussian Constants; — Report of a Committee 
relative to the expediency of recommending the continuance of the Toronto Magnetical and 
Meteorolog,cal Observatory 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 op the NINETEENTH MEETING, at Birmingham, 
1849, Published at 10*. 
Content# —Rev Prof. Towell, A Catalogue of Observations of Luminous Meteors;—Earl 
of Rossc. Notice ot Nebulae lately olirerved in the Six-feet Reflector—Prof. Daubeny, on the 
Influence of Carbonic Acid Gas on the health of Plants,Specially or those allied to the Fossil 
Remain, found ns the C oal Formation Dr. Andrew#, Report on the Heat of Combination; 
—Report of the Committee on the Registration of the Periodic Phenomena of Plants and 
Animals;—NmUi Report of Committee on Experiment* on the Growth and Vitality of Seeds; 
7 P - i 10 "* concerning ,h c Observatory of lire- British Association at Kew, from 
Aug. 9, 1848 to Sept.13, ***#!—R. Mallet, Report on the Experimental Inquiry on Railway 
Bar Corrosion ;— M. R. Birt, Report on the Discussion ot the Electrical Observations at Kew. 
Together with (ha Transactions of the Sections, the Rev. T. R. Robinson’* Address, and 
Recommendations of the Association and its Committees. 
