374 Royal Geological Society of Cornwall. 



and with a zenith telescope. By Capt. H. Kater. — On the height of 

 the aurora borealis above the surface of the earth j particularly one 

 seen on the 29th of March, 1 82G. By J. Dalton, Esq. — A comparison 

 of the changes of magnetic intensity throughout the clay, in the dip- 

 ping and horizontal needles at Treurenburgh Bay in Spitsbergen. By 

 Capt. H. Foster.— Experiments relative to the effect of temperature 

 on the refractive index and dispersive power of expansible fluids, and 

 on the influence of these changes in a telescope with a fluid lens. By 

 P. Barlow, Esq. — On some circumstances relating to the economy of 

 bees. By T. A. Knight, Esq. — On the laws of the deviation of mag- 

 netized needles towards iron. By S. H. Christie, Esq. — Description 

 of a sounding-board in Attercliffe church, invented by the Rev. J. 

 Blackburn. — On the mutual action of sulphuric acid and alcohol, and 

 on the nature of the process by which ether is formed. By H. Hennell, 

 Esq. — Experiments and observations on electric conduction. By W. 

 Ritchie, Esq. — On magnetic influence in the solar rays. By S. H. 

 Christie, Esq. — Appendix. — Meteorological Journal from January to 

 June, 1828. 



LXV. Proceedings of Learned Societies. 



ROYAL GEOLOGICAL SOCIETY OF CORNWALL. 



Fifteenth Annual Report of the Council. 



SINCE the last general meeting, an event has taken place which 

 cannot but be regarded as most honourable t© Cornwall, as well as 

 gratifying to the Society, — the elevation of our President to the Chair 

 of the Royal Society. A public meeting of the members of this So- 

 ciety was held for the purpose of congratulating him on that event } 

 and to the address which was then sent to him (and which has been 

 already published), he returned the following answer. 



" My dear Sir, Eastbourne, December 27th, 1827. 



" Your letter of the 24th, received this morning, has conveyed to me 

 the most gratifying compliment with which I have ever been honoured ; 

 gratifying in every possible point of view, but most eminently so when 

 my elevation to the Chair of the Royal Society is stated as reflecting 

 credit on my native county ; in conjunction too with Sir Humphry 

 Davy, whose celebrity is established over the whole civilized world. 



" 1 beg to present my most grateful acknowledgements and thanks 

 to the members of the Royal Geological Society of Cornwall, and I 

 will immediately communicate to Sir H. Davy, the condolence and well- 

 deserved compliments paid to him, with which I am sure he will be 

 most highly gratified. 



" I trust it is quite unnecessary for me to add, that in all situations 

 and under every circumstance, it will be equally my pride and my 

 inclination to forward the views and to promote the interest of the 

 Cornwall Geological Society. 

 Believe me, my dear Sir, 



Your much obliged and faithful humble Servant, 



To Joseph Came, Esq. Davie s Gilbert." 



Surely 



