SOI 
Scientific Intelligence . — -Mineralogy. 
in Norway, are distinguished from the crystals of the same spe- 
cies hitherto known, by their great size, being several inches in 
thickness, and half a foot, or perhaps more, in length. The 
terminal faces of moderate extent are so perfect that they leave 
nothing to be desired in this respect. But the most remarkable 
circumstance relating to these crystals, is their having a very 
distinct appearance of growth in their structure, the whole mass 
being divided into a succession of scales or envelopes covering 
one another. M. Weiss gives some illustrations regarding this 
structure, and then passes to the description of the new form 
which he has observed; it is derived from the fundamental prism 
by modifications on the longitudinal edges, on the edges and 
angles of the base, and appears to approach closely to that which 
Haiiy has represented, by fig. 71. of his Treatise. 
13. New Analysis of the Steinheilite or Dichroite of Orijarvi , 
by P. A. Bonsdorjf. — The analysis of this substance has already 
been made by Professor Gadolin, whose investigation of it ap- 
peared in the Memoirs of the Imperial Academy of Sciences of 
Petersburg, accompanied by a very accurate description of the 
mineral by Count Steinheil. At the request of the same che- 
mist, M. Bonsdorif has repeated the analysis, and has obtained 
the following result : 
Silica, 
49,95 
containing 25.11 of oxygen. 
Alumina, 
32,88 
15.35 
Magnesia, 
10,45 
4.04 
Oxide of Iron, 
5.00 
1.53 
Oxide of Manganese, 
0.03 
Volatile parts, 
1.65 
99.96 
This composition is represented by the formula M S s -f 4 j ^ | S, 
according to which the following proportions have been calcu- 
lated ; silica, 49.93; alumina, 32.60; magnesia, 10.32; oxide of 
iron, 5.00. 
14. Phillip site.— It appears, from a late analysis of Gmelin, 
that the Harmotome of Marbourg contains potash in place of 
barytes, and therefore belongs to the species Phillipsite, describ- 
ed by Mr Levy. It is named by some German mineralogists 
Kali-harmotome.— Bucklandite. This mineral, so nearly allied to 
pistacite, has been met with in the rocks of the Lake of Laach. 
15. Tabular Spar of Pargas, — Among the numerous and 
