Scientific Intelligence, S^c. 399 



of the uniform non-attentlance of the members. This is the more to 

 be regretted because these meetings, if properly supported, might have 

 been the means of exciting a more general taste for geological pur- 

 suits; and it is to be hoped that the attempt which will be made, 

 during the ensuing year, to revive them will be more successful, as 

 your council feel assured that such meetings will greatly tend to 

 promote the welfare of the Society. 



The publication of the transactions in annual parts has been again 

 brought before the council, and has been strenuously advocated as a 

 measure which would insure the more frequent communication of 

 valuable memoirs. The papers already laid before the Society will 

 appear in the fifth volume, which it is expected will be finished 

 against the next anniversary : and the council recommend the imme- 

 diate publication of such as may be hereafter presented, in the hope 

 that such a regulation may elicit a more abundant supply of scientific 

 communications than has been received on the present occasion. 



The council, however, whilst regretting the inactivity of the 

 Society during the past year, have great satisfaction in being able to 

 state that considerable progress has been made towards the attainment 

 of a more accurate knowledge of the geological structure of Cornwall, 

 by the able and indefatigable labours of Mr. De la Beche, who has 

 kindly acceded to their request of giving the members some informa- 

 tion concerning the result of his investigations. By order, 



HENRY S. BOASE, Secretary. 



September '2,nd, 1856. 



The following papers have been read since the last report : — 



I. A chemical examination of a peculiar substance incru sting the 

 roof of a cavern in Cornwall. By Henry S. Boase, M.D., Secretary 

 of the Society. 



TI. On Slikensides, and whether they afford evidences of mechani- 

 cal origin. By W. J. Henwood, F.G.S., Lon. and Paris, Hon. 

 M.Y.P.S., Assay Master of Tin in the Duchy of Cornwall, Curator 

 of the Museum. 



Til. On a granite vein and the phenomena which accompany it 

 at Polmear Cove. By Henry S. Boase, M.D. 



IV. On periodical variations in the quantities of water afforded by 

 springs. By W. J. Henwood, F.G.S. Cor. Mem. Plymouth Insti- 

 tution. 



V. An account of the Quantity of Tin produced in Cornwall and 

 Devon, in the year ending w^ith the Midsummer Quarter, 183(3. 

 By Joseph Came, Esq., F.R.S., F.G.S., M.R.I.A., &c.. Treasurer 

 of the Society. 



VI. An account of the Quantity of Copper produced in Great 

 Britain and Ireland, in the year ending the 30th June, 183G. By 

 Alfred Jenkin, Esq. 



OFFICERS AND COUNCIL FOR THE PRESENT YEAR. 



President, Davies Gilbert, Esq., D.C.L., F.R.S., &c., &c.— 

 Vice Presidents, Robert Were Fox, Sir W. Molesworth, Bart., 

 M.P., F.R.S., Rev. Canon Rogers, John Scobell. — Secretary, 

 Henry S. Boase, M.D. — Treasurer, Joseph Came, F.R.S. — 

 Curator, W. J. Henwood, F.G.S. — Librarian, Richard Hocking. 



