LIST OF PLATES. 



PLATE I. 



Illustrative of the Report of the Committee on Tidal Observations made on 

 the Humber and Rivers Trent and Ouse, 1864. 



PLATE II. 



Illustrative of Mr. Symons's Report on the Fall of Rain in the British Isles 

 during the years 1862 and 1863. 



PLATE III. 



Mr. J. Hartnup's Diagram of the Storm of Dec. 3, 1863, from the Records 

 of the Self-registering Instruments of the Liverpool Observatory. 



PLATE lY. 



Illustrative of the Report of the Committee on Standards of Electrical Re- 

 sistance. 



