tlie second, by the time at tlie two places, calcuLited from altitudes 

 of the sun taken with the instrument just mentioned. Though 

 the rate of the chronometer was wonderfully steady, considering 

 the shocks to which it was exposed, the author does not conceive 

 that the longitudes are determined with very great precision. 



December 17. 



Professor RUSSELL, Vice-President, in the Chair. 



The following Donations were presented : — 

 Philosophical Transactions of the Royal Society of London for 



1832. Part II. — From the Society. 

 Contribution to a Natural and Economical History of the Coco- 

 Nut Tree. By Henry Marshall, Deputy-Inspector of Army 

 Hospitals. — From the Author. 

 Astronomische Nachrichten. Nos. 221-232 inclusive. From 

 Mr Bessel. 



The time usually employed in the ordinary business of the So- 

 ciety having been occupied by a discussion on extraordinary affairs, 

 the reading of the communications announced for this meeting was 

 deferred. 



January 7. 



Sir THOMAS MAKDOUGALL BRISBANE, 

 President, in the Chair. _, 



The following Donations were presented : — 



The Entomological Magazine. No. I. — From James Wilson, 

 Esq., F.R.S.E. 



Historical View of the Progress of Discovery on the more North- 

 ern Coasts of America. By P. F. Tytler, Esq., and James 

 Wilson, Esq. — From the Authors. 



The following communications were then read : — 



1. Researches on the Conducting Power of the Metals 

 for Heat and Electricity, tending to establish a New 

 Analogy between these pi'inciples. By James D. 

 Forbes, Esq., F.R.SS.L. it Ed. 



The paper began by pointing out the very limited class of bodies 



