ANNIVERSARY ADDRESS OF THE PRESIDENT. XCIII 



of the minerals found in Cornwall, with their localities. In this he 

 enumerates no less than 1 59 mineral substances as discovered in that 

 county, one furnishing such excellent opportunities for the study of 

 the mode of occurrence of numerous minerals. For facilitating that 

 study the catalogue of Mr. Garby cannot fail to be of very great ser- 

 vice. 



Mr. Henwood communicated a Description of the Brazilian method 

 of Washing (dressing) Gold, and Mr. William Vivian, a practical 

 miner, a paper on the Formation and Direction of Mineral Veins. 



The Geological Society of Manchester had the following commu- 

 nications made to it : — " Notes on a section from Parkgate to Bux- 

 ton," by Mr. Ormerod ; " A Catalogue of Geological Specimens from 

 Van Diemen's Land, with some observations on them," by Mr. 

 Moore ; "A short account of the Geology and Natural History of 

 the Orange River, South Africa," by Captain Miller; "An account 

 of Excursions in Van Diemen's Land, and notices of its Geology," 

 by Mr. Moore ; " An account of the Island of Labuan, East Indies," 

 by Mr. Bellot ; " An account of the Coal District of Tyrone," by 

 Mr. Griffith ; and " Notes on the Coal Districts of Munster and 

 Tyrone," by Mr. Elias Hall. 



Pal^eontological Society. 



This Societ}', which we may consider as one very intimately con- 

 nected with our own, has continued to advance steadily and prosper- 

 ously. Its members are now increased to 728, — a large number 

 when we consider that the Society was only founded in March 1847. 

 The Monograph of the Univalves in the Tertiary deposit, named the 

 Crag, by Mr. Searles Wood, has been published, and the Descrip- 

 tions of the Reptiles of the London Clay, by Professors Owen and 

 Bell, is in a forward state. The Society has been most fortunate in 

 having induced Professor Owen to publish his great work on the 

 British Fossil Reptiles through it. A work of this magnitude and 

 character cannot fail firmly to establish the Paleeontological Society 

 in the good opinion of the scientific public. The Monograph of the 

 Fossils of our Magnesian Limestone, by Mr. King, is far advanced, 

 as also the Cephalopoda of the London Clay, by Mr. Edwards. Tlie 

 Bivalve Shells of the Crag, by Mr. Searles Wood, will be ready in 

 1850. 



Geological Slirvey of the United Kingdom. 



Some of the results of this Survey have been communicated to our 

 Society by Professors Ramsay and Edward Forbes, and by Messrs. 

 Beete Jukes, Selwyn, Aveline and Salter, in their papers and notes 

 read before us, and previously noticed, the officers of the Survey thus 

 endeavouring to assist in the general progress of this Society. Not- 

 withstanding that the wet character of the past summer was by no 

 means favourable to field investigations, more particularly in moun- 

 tainous districts, much progress has been made in this branch of the 

 public service. The complicated district of North Wales has now 

 been so far examined that its completion may be expected' during the 



