MISCELLANEA. 



s 



85 



Silica 42.666 



Alumina 54.111 



Oxide of iron 1.999 



Water ......... 0.510 



Mr. Hanidinger judges that the Sillimanite" is a va- 

 riety of Disthene, from the constituents being the same and 

 in like proportion as those afforded by an analysis of that 

 mineral (or Kyanite), and the similarity of crystalline 

 forms. {Edinburgh new Phil. Journal.) 



99,286. 



Anthosiderite, — A new mineral. 



The colour of Anthosiderite is ochreous brown inclining 

 to grey, and it occurs in masses, distinct concretions, fibres, 

 and grouped in the same way as flowers ; and it is from this 

 latter cause added to the iron it contains, that it has re- 

 ceived the above name. It is opaque or slightly translucent 

 at the edges, and contains : 



Silica 60.081 



Oxide of iron ....... 34.99 U8.57 



Water 3,50 J 



{Edinburgh New Phil. Journal.) 



PROCEEDINGS OF SOCIETIES. 



GEOLOGICAL. SOCIETY OF MANCHESTER. 



At the monthly meeting held on the 27th of January last^ 

 Mr. BiNNEY reported that Mr. Francis Looney, F.G.S. had 

 commenced his lectures to the working miners of this dis- 

 trict, on the nature and properties of the diflerent gases 

 found in mines ; the causes of their generation and accumu- 

 lation ; the structure and principles of the different safety 



