683 
recent progress of Ethnographical Philology;—Dr. J. C. Prichard, on the various 
methods of Research which contribute to the Advancement of Ethnology, and of the 
relations 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 as exhibited by the Modern Celtic Dialects still 
extant ;—Dr. Max Miiller, on the Relation of the Bengali to the Aryan and Aboriginal 
Languages of India ;—W. R. Birt, Fourth Report on Atmospheric Waves ;—Prof. W. 
H. Dove, Temperature Tables, with Introductory Remarks by Lieut.-Col. E. Sabine ; 
—A, Erman and H. Petersen, Third Report on the Calculation of the Gaussian Con- 
stants for 1829. 
Together with the Transactions of the Sections, Sir Robert Harry Inglis’s Address, 
and Recommendations of the Association and its Committees. 
PROCEEDINGS or tus EIGHTEENTH MEETING, at Swansea, 
1848, Published at 9s. 
ConTENTS :—Rev. Prof. Powell, A Catalogue of Observations of Luminous 
Meteors ;—J. Glynn, on Water-pressure Engines;—R. A. Smith, on the Air and 
‘Water of Towns ;—Eighth Report of Committee on the Growth and Vitality of Seeds ; 
—W. R. Birt, Fifth Report on Atmospheric Waves ;—E. Schunck, on Colouring 
Matters ;—J. P. Budd, on the advantageous use made of the gaseous escape from the 
Blast Furnaces at the Ystalyfera Iron Works ;—R. Hunt, Report of progress in the 
investigation of the Action of Carbonic Acid on the Growth of Plants allied to those 
of the Coal Formations ;—Prof. H. W. Dove, Supplement to the Temperature Tables 
printed in the Report of the British Association for 1847 ;—Remarks by Prof. Dove on 
his recently constructed Maps of the Monthly Isothermal Lines of the Globe, and on 
some of the principal Conclusions in regard to Climatology deducible from them ; 
with an introductory Notice by Lieut.-Col. E. Sabine ;—Dr. Daubeny, on the progress 
of the investigation on the Influence of Carbonic Acid on the Growth of Ferns ;—J. 
Phillips, Notice of further progress in Anemometrical Researches ;—Mr. Mallet’s 
Letter to the Assistant-General Secretary ;—A. Erman, Second Report on the 
Gaussian Constants ;—Report of a Committee relative to the expediency of recom- 
mending the continuance of the Toronto Magnetical and Meteorological 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 or tat NINETEENTH MEETING, at Birmingham, 
1849, Published at 10s. 
CONTENTS :—Rev. Prof. Powell, A Catalogue of Observations of Luminous 
Meteors ;—Earl of Rosse, Notice of Nebule lately observed in the Six-feet Reflector ; 
—Prof. Daubeny, on the Influence of Carbonic Acid Gas on the health of Plants, 
especially of those allied to the Fossil Remains found in the Coal Formation ;—Dr. 
Andrews, Report on the Heat of Combination ;—Report of the Committee on the 
Registration of the Periodic Phenomena of Plants and Animals ;—Ninth Report of 
Committee on Experiments on the 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 Hxperimental Inquiry on Railway 
Bar Corrosion ;—W. 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 or tus 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 Meteoro- 
logical Observations taken at St. Michael’s from the 1st of January, 1840, to the 31st 
