52 ACCOUNTS, ESTIMATES, &C. OF THE BRITISH MUSEUM. 



them have been selected for exhibition, and are now mounted on tablets, and displayed in 

 the Table-cases ; the remainder have been ananged in the drawers under the cases. 



The Foreign Tertiary Shells have been under arrangement. The fine collection of 

 Cephalopoda, from the Neocomian of the South of France, obtained from M. Astier, has 

 been named and registered. The Ammonites obtained from the collections of Dr. 

 Bowerbank and Mr. Saul, have been registered and incorporated in the general collection. 



A large proportion of the Mollusca (chiefly Oolitic), forming part of the collection 

 obtained from JVlr. Bean of Scarborough, has been named and arranged in the cabinets. 



Specimens Registered during the year 1866 : 



Of the Vertebrate Classes - - - - - - - 661 



Cephidopoda .___-_J.- 544 



Other Mollusca - --_ 2,312 



Crustacea ---------- 272 



♦ Radiata .--_-----_ 135 



Fossil Plants - - - - - -- - - 136 



Total - - - 4,061 



Geo, R. Waterhouse. 



Department of Mineralogy. 



The additions made to the Mineralogical Collection in the past year (1866) amount 

 to 672 specimens. 



The work in the Department has consisted in the incorporation of the Minerals purchased 

 of Colonel de Kokscharow, and in the registration and incorporation of those that have 

 been acquired during the past year. A change in the arrangement of the Silicates has 

 been carried out, and the space allotted to difftrent species in other parts of the collection 

 has been redistributed. The great mass of Meteoric Iron from Melboume has been mounted 

 on a revolving support, and a thin section taken from one of its extremities, in order to 

 exhibit the structure of the Iron on a polished surface. 



The arrangement of the reserve collection in the drawers under the table cases has been 

 deranged by the introduction of glazed fronts to several of these cases. A large number of 

 Minerals, displaced from the table-cases by new and more important specimens, had also to 

 be arranged in the reserve drawers. An entire re-adjustment of the drawer space given to 

 the reserve collection has accordingly been commenced, and 70 of the drawers have 

 been fitted with trays, and the specimens in them labelled with their localities. 



The chief acquisitions made during the year by purchase, have been as follows: — 



A large mass, weighing 85 lbs. of the Meteoric Iron of Tolucca ; and a small fragment 

 of that of Copiapo. 



Some fine specimens of cut stones, much needed in the collection, viz. : — 



A cut stone of Chrysoberyl, of a rich primrose yellow, and of the great size of 40^ 



carats. 



A fine Peridot of nearly 40 carats ; and large specimens of the dark orange and light 



yellow varieties of Quartz, termed Spanish Topaz and Citrine. 



Among other purchases have been the following : — 

 A Nugget of Native Platinum, weighing 8 ozs. 



Specimens of Tetrahedrite, with an iridescent coating of copper Pyrites; Her(;d's- 

 foot mine, Cornwall. 



Finely crystallized Argentite, Wheal Ludcott, Cornwall. 



Copper Pyrites, in brilliant Crystals; Redruth. 



Allophane, with pearly lustre; near Tavistock. 



Woodwardite and Bayldonite ; Cornwall. 



Finely crystallized Copper Glance ; Basset Mine, Redruth. 



Copper Glance, in thin hexagonal plates; near St. Just. 



Black Blende, in Brilliant Crystals; Alston. 



Botryoidal Blende, on Fluor ; Alston. 



Barytocalcite, in very perfect transparent Crystals ; Alston. 



A series of specimens of Emery ; Chester, Mass, 



Scheelite, in very fige Crystals; Carrock Fell, Cumberland. 



Zinkenite ; Wolfsberg, Hartz. 



A long slab of veined Stalagmitic Marble; California. 



Danaite, extremely fine Crystals ; Hakansbo, Sweden. 



Uianite, in beautiful Crystals; Cornwall. 



Two large specimens of Gold in Quartz ; California. 



Manganese Idocrase ; Ala. 



A laige Crystal oi Dicliroite ; Bodenmais. 



Jidingtonite Crystals ; Old Kilpatrick. 



" Tile 



