152 
NATURAL HISTORY. 
[north 
Class V. 
Cephalopoda. 
Order I. Sepio- 
phora. 
Fam. 1. Octopodidce. 
Ocythoe. 
Octopus. 
Eledona. 
Philonexus. 
Fam. 2. Sepiadcs . 
Sepiola. 
Onychoteuthis. 
-Peratoptera. 
Ommostrephes. 
Loligopsis. 
Cranchia. 
Loligo. 
Sepioteuthis. 
Sepia. Turrilites. 
Beloptera. Baculites. 
? Fam. 3. Belemnitidce . 
Belemnites. 
Belemnosepia. 
Order II. Nauti- 
lophora. 
Fam. 1. Nautilidcs . 
- Omphalia. 
Fam. 4. Spvndidce. Nautilus. 
r Eituites. 
opirula. ^ Orthostoma. 
Fam. 5. Ammonitidce . Oy r *>ceratites. 
Orthoceras. 
Ammonites. 
Planites. 
Globites. 
Crioceratites. 
Cyrtoceras. 
Clymene. 
Scaphites. 
Hamites. 
Conoceras. 
/Cyrtolites. 
Actinoceras. 
Fam. 2. Goniatidce, 
Phragmolites. 
Ceratites. 
Goniatites. 
JOHN EDWARD GRAY. 
Oct 16, 1840. 
NORTH GALLERY. 
This Gallery, above the Library on the North side of 
the North Wing, is appropriated to the Oryctognostie 
or Mineralogical Collection, and to that of Palaeontology, 
(Secondary Fossils or Organic Remains). The greater 
portion of these Collections, removed from the room here¬ 
tofore called the Long (but now the Eastern Zoological) Gal¬ 
lery, is under re-arrangement. x4ccording to the plan laid 
down for their distribution, the Table Cases containing 
the General Collection of Minerals will form two rows 
or series, extending through four rooms, as follows: — 
In Room I., being the N.F. corner room, the first 
series of Table Cases begins and the second terminates: 
it contains Cases 1 to 6 and 56 to 61. Room II. will 
contain the Cases 7 to 13 and 49 to 55. Room III. 
will contain the Cases 14 to 23 and 39 to 48, and Room 
IV., the Cases 24 to 30 and 32 to 38. 
The system adopted for the arrangement of the Minerals, 
with occasional 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 
