Royal Geological Society of Cornwall. 383 



council's attention, has been enlarged by the addition of an- 

 other cabinet extending the whole length of one of the galle- 

 ries : this has afforded sufficient space for the exhibition of 

 several series of foreign specimens, which have been arranged 

 by the curator with his usual neatness and judgement. The 

 attainment of this object will afford but little interest to the 

 scientific stranger ; but to our native students it is of great im- 

 portance, as displaying examples of the various and dissimilar 

 mineral productions of our globe. To our constant and libe- 

 ral correspondent, Wm. Maclure, Esq. of Philadelphia, we 

 are indebted for another donation of minerals from the United 

 States of America; consisting of various modifications of ser- 

 pentine, of augite, maclurite, franklinite, red oxide of zinc, and 

 other interesting specimens. Doctor Jer. Van Rensselaer, of 

 New York, has presented to the Society several earthy and me- 

 tallic minerals, which are peculiarly specified in the report of 

 donations. 



Capt. Wallis, of Bodmin, has also presented a series of 

 specimens illustrative of the geology of the country between 

 Hydrabad and Madras, accompanied by a descriptive account 

 of the same, together with a map of this part of the peninsula 

 of India. 



To the kind contributions of several members, in compli- 

 ance with the request made at the last annual meeting, the 

 geological department has been recently indebted for many 

 specimens of granite : but the varieties of this interesting for- 

 mation are so numerous, that many more would be equally 

 acceptable. 



The department of simple minerals has also been enriched 

 by the purchase in Cumberland of a series of splendid fossils, 

 consisting of variously crystallized galena, blende, fluor spar,, 

 sulphate of barytes, arragonite, and other minerals. 



Before concluding, the council take this opportunity of so- 

 liciting further donations from those members who have pri- 

 vate collections : many may have refrained from presenting 

 their spare duplicates, on the ground that our museum already 

 possesses better specimens of the same kind : these however 

 would be very acceptable, and would enable the Society to 

 comply with the repeated applications that have been made 

 by institutions, both at home and abroad, for an exchange of 

 minerals. 



Lastly, The council propose for the consideration of the ge- 

 neral meeting the propriety of expending a portion of their 

 income in the collection of geological specimens; thereby 

 promoting the objects of the Society by enlarging the know- 

 ledge of our rock formations, and collecting several pieces of 



the 



