xii CONTENTS. 



C. Storm of December 15th and 16th, 1839 . . .535 



D. Mr. Espy's Paper, read at the Meeting of the British 

 Association, on the Diurnal Fluctuations of the Barometer 543 



Phenomena of an Aurora ..... V::^ 545 



Charts of the Fluctuations of the Barometer . . . 549 

 On the Helm Wind of Crossfell. By the Rev. J. Watson. 



Eighth Report of the British Association .... 552 



