n. GALLERY.] natural history. (Minerals.) 
65 
NORTH GALLERY. 
The Rooms on the North side of the North Wing are appropriated to 
the Collections of Minerals and Fossils. 
MINERALS. 
[The notices relating to the Fossils commence at p. 81.] 
In accordance with the plan laid down for their distribution, the Table 
Cases containing the General Collection of Minerals form two rows, 
or series, extending through four rooms or compartments of the gal- 
lery, as follows : — 
In Room I.*, being the N. E. corner room, the first series of I able 
Cases begins and the second terminates : it contains Cases 1 to 6 and 
55 to 60, with five supplemental Cases. Room II. contains the Cases 
7 to 13 and 48 to 54. Room III. the Cases 14 to 23 and 38 to 47, with 
two supplemental Cases; and in Room IV. are placed the Cases 24 
to 30 and 31 to 37, the arrangement of which is nearly completed. 
The system adopted for the arrangement of the Minerals, with occa- 
sional slight deviations, is that of Berzelius, founded upon the electro- 
chemical theory and the doctrine of definite proportions, as developed 
by him in a memoir read before the Royal Academy of Sciences of 
Stockholm. The detail of this arrangement cannot here be entered 
into : it is, however, partly supplied by the running titles at the out- 
sides of the Table Cases, and by the labels within them. 
The first two Cases, and part of the third, contain the electro-positive 
native metals : iron, copper, bismuth, lead, silver, mercury, palladium, 
platinum, osmium and gold. 
Case 1. Native iron of undoubtedly terrestrial origin is of very rare 
occurrence, almost all the insulated masses of this metal hitherto found 
having proved to be meteoric , and of these the following specimens are 
deposited, nearly in the order of their discovery, or of the first mention 
made of them: — A portion of the celebrated mass of iron of the 
descent of which, at Agram, in Croatia, on the 26th of May, 1751, 
detailed official accounts were drawn up by the authorities of that place, 
who presented it to the Roman Emperor, Francis L, and to the 
Empress Maria Theresa. — Fragment of the iron from the Upper 
Senegal, in Africa, discovered between the years 1760 and 1770. 
. A large piece detached from the celebrated mass of Siberian native 
iron, which was discovered in 1772, by Pallas, on the summit of 
a mountain between Abakansk and Belskoi Ostrog, on the banks of the 
* It may here be observed that among the objects separately placed in Room I. 
are — near the window opposite to the Table Case containing the native silver, a 
branched variety of that metal from Kongsberg, presented by H. Heuland, Esq. ; — 
in the centre window of the east side, a large portion of the trunk of a coniferous 
tree converted into semi-opal, presented by Lady Chantrey ; — in the window, near 
the Table Cases containing the sulphates, a very large mass of Webstente, from 
Newhaven, Sussex, presented by Dr. Mantell; — a large specimen of the brown coal 
of Iceland, called Surturbrand ; two busts carved in jet-like bituminous brown 
coal, the one of Henry VIII., the other of his daughter the Lady Mary. The 
sculptured tortoise near the centre of this room, placed on a round table inlaid 
with various antique marbles and other mineral substances, is wrought out of 
nephrite or jade : it was found on the banks of the Jumna, near the city of 
Allahabad, in Hindostan, brought to England by Lieutenant-General Kyd, and 
I presented to the Museum by Thomas Wilkinson, Esq. 
