146 Scientific Intelligence. [Feb. 



Comparative View of the Number of Members. — Last anniver- 

 sary, 172 ; removed and dead, 12; elected this year, 4; total, 164. 



Officers and Council for the present Year. 



President.— Jy. Gilbert, Esq. M.P. V.P.R.S. &c. &c. 



Vice-Presidents. — >Sir Rose Price, Bart.; Sir W. Lemon, Bart.; 

 L. C. Daubuz, Esq. ; Rev. G. Treweeke. 



Secretary/. — John Forbes, M.D. 



Treasurer. — Henry Boase, Esq. 



Librarian. — Rev. C. V. LeGrice, A.M. 



Curator. — Edward C. Giddy, Esq. 



Assistant-Secretary. — R. Moyle, Jun. Esq. 



The Council. — J. Carne, Esq.; T. Hartley, Esq.; M. P. Moyle, 

 Esq. ; J . Rule, Esq. ; J. Tremenheere, Esq. ; Rev. Uriah Tonkin ; 

 J. Giddy, Esq.; W. Sandys, Esq.; G. I). John, Esq.; J. Ste- 

 vens, Esq. 



Article IX. 



SClENTiriC INTELLIGENCE, AND NOTICES OF SUBJECTS 

 CONNECTED WITH SCIENCE. 



1. Analysis of a Specimen of Blende. By Dii Menil, Apothecarjr 



at Wunstorf. 



The colour of the mineral was reddish-brown. Its fracture 

 was foliated. Its specific gravity was 4-061. Its powder was 

 iio-ht-brown. The analysis conducted in the same manner as mine, 

 described in a preceding volume of the Annals of Philosophy y 

 gave the following constituents : 



Sulphur 11-58 23-16 



Zinc 34-24 68-48 



Iron 4-04 8-08 



49-86 99-72 



Loss 0-14 0-28 



50-00 100-00 



(Schweigger's Journal, xxiv. 67.) 



11. Chemical Analysis of Egeran. By Stanislaus Count Duni& 



Borkowski. 



The mineral called Egeran by Werner, and considered by him 

 as a species distinct from idocrase, is found at Haslau, near 

 Eo-er, in Bohemia, and has for some years been well known to 

 mineralogists. Haiiy considers it as a variety of idocrase ; and 

 t>.s far as can be judged from the cleavage, this opinion seems to 



