25 



West Coast of America, and that the greater part of these specimens 

 have been labelled with the localities and names of the dvonors. 



2nd. That in the English Collection the specimens presented up 

 to the close of the Session 1833 have been also introduced, with 

 the exception of those presented by Mr. Murchison from the coun- 

 ties of Salop, Herefordshire, and the neighbouring parts of Wales, 

 the arrangement of which has stood over until his observations on 

 that part of the country are completed. 



And 3rdly, That in the Scotch and Irish collections all the spe- 

 cimens presented up to the close of the Session 1833, have also 

 been arranged. 



The Curator has been most anxious to introduce a regular and 

 systematic method of labelling all the specimens, but his whole time 

 having been occupied in the performance of the above-mentioned 

 duties, he has this year been unable to make any progress in the 

 labelling of the British Collections. The appointment of an addi- 

 tional clerk, as already authorized by the Council, will enable Mr. 

 Lonsdale to proceed immediately in the prosecution of this desirable 

 object. 



The Museum has been considerably improved as a place of study 

 by the addition of a collection, arranged and presented by the Pre- 

 sident, illustrative of some important phsenomena in geology, such 

 as the alteration of rocks in contact with granitic and other mineral 

 veins, the varieties of concretionary structure, cleavage, wea- 

 thering, &c. &c. 



The same department of the Museum has also been enriched by 

 a collection of mineral veinstones from Cornwall, presented by Mr. 

 Henwood, which it is hoped will form the nucleus of a series to be 

 collected from different parts of the world to elucidate this still ob- 

 scure subject. 



The Society has been indebted to Captain Basil Hall for the do- 

 nation of a cabinet containing the results of the experiments of the 

 late Sir James Hall on the fusion of rocks. The Committee hope 

 that the possession of this series will facilitate further investigations 

 on a subject, which would probably yield an ample harvest of dis- 

 covery to future inquirers. 



Amongst the other donations, those which the Committee feel 

 themselves particularly called upon to notice are : 



A collection of specimens from the neighbourhood of Bonn^ pre« 

 sented by Mr, Horner. 



Specimens of rocks from Wiirtemburg, presented by Count Fre- 

 derick Mandelsloh. 



An extensive series of specimens from the formations of the bor- 

 der counties of England and Wales, collected during the last sum- 

 mer, and presented by Mr. Murchison. 



A collection of certain products of Vesuvius, preserved in sealed, 

 glass bottles, presented by Mr. Auldjo. 



The Committee have also the pleasure of stating that the Library 

 has been increased during the last year by 142 books and pamphlets. 



A valuable series of more than 800 Admiralty Charts has been 

 presented by the Admiralty ; and the Committee have the satisfac- 



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