22 ACCOUNTS, ESTIMATES, &C. OF THE BRITISH MUSP.UxM. 



able number of Crustacean remains, from the Gaiilt and Greensand. may be noticed as 

 among tiie more important additions to the Fossil Invertebrate classes. 



The total number added to this series during the year is as follows : — 



Fossils from the Lower Silurian rocks ----- 83 



Upper ditto ---------- 2,431 



Devonian -_-_.----- 60 



Coal Measures - - - - 122 



Oolitic and Liassic formations ..---- 50 



Cretaceous ditto --------- 20fj 



Tertiary ---------- 5 



Total .----.- 2,957 



To the Vertebrate series have been added about 80 species, illustrated by about 300 

 specimens; of these, tbe most striking objects are as follows: — 



An almost perfect skeleton of tlie ^celidosaurus Harrisoni, already alluded to; two small 

 and very perfect specimens of Jchtki/osaurus, from ilie lias of Lyme Keais; a fine specimen 

 of Ichthyosaurus loiigirostris, from the Lias of Barrow-on-Soar ; some fine teeth, with por- 

 tions of the jaw bones of Polyptychodon, from the Chalk, near Rochester. 



The Collection of Fossil Fishes has been augmented by species from various formations, 

 among which may be specified Vomer longispinus, Dules medius, Holocentrum pygmaum, 

 and others from the Eocene Formation of Monte Bolca; Solea antiqua, and several species 

 of Clupea, from the Miocene of Kirchberg, near Ulm ; and a remarkably fine palatal tooth 

 of Acrodus ramosus, from the Carboniferous Limestone of Oreton, Salop. 



To the Collection of Fossil Plants has been added, by purchase, a series of upwards of 

 80 specimens of Coal Plants from Zv/ickau ; some rare and curious nut-like fruits, from the 

 Chalk of Rochester; and a large and beautifully preserved Cycadean Cone, from th>' Infe- 

 rior Oolite of Somersetshire. 



Amons: the donations may be particularised some remains of a new species of Plesio- 

 saurus (P. Aiistralis, Owenj, from the Middle Island, New Zealand, piesented by J. H. 

 Hood, Esq. ; vaiious portions of the Skeleton of Diprotodun, Nototherium, and other Mar- 

 supial quadrupeds ; and a vertebra of Megalaniu prisca, from Gouris, Queensland, pre- 

 sented by Sir Daniel Cooper. Portions of the incisor teeth, a cast of a portion of a lower 

 jaw, and casts of teeth, and other parts of Diprotodon Australis, and likcvvise casts of 

 some parts of ihe skeleton of a gigantic Kangaroo, together with 18 Fossil Shells from 

 South Australia, presented by the Governors of the South Ausiralian Mu^eum. Six 

 specimens oi Archegosaurus Derhenii, fioni the Carboniferous Formation oi Lebac!i,near 

 Saarbriick, Rhenish Prussia, presented by Professor Owen. Two specimens of Climatius 

 Scutiger, and a specimen of Acanthodes MitcheUi, from the Old Red Sandstone, Farneli, 

 presented by James Powrie, Esq. A very interesting Collection of Plant remains, con- 

 sisting of a series of leaves from a Tertiary Deposit on the banks of the Mackenzie River, 

 10 miles above the Great Bear Lake, 65" N. lat., presented by Sir John Richardson. 

 Among these specimens. Professor Heer, of Zurich, has identified six genera of Exogenous 

 Trees, and several apparently new species. 



Geo. R. Watcrhouse. 



Department of Mineralogy. 



The additions to the Mineral Collection during the past year have been of a valuable 

 character. They amount to 1,525 specimens, and among these the minerals alluded to in 

 the ibllowing report are of special interest. 



The fine series of minerals, chiefly of the Zeolite class, that was presented in 1860 by 

 James Berkley, Esq., Chief Engineer of the Great Indian Peninsular Railway, has been 

 largely added to during the year 186I by the liberality and discrimination of that gentleman. 

 Mr. Berkley studied this class of minerals with the view of sending to the Museum the 

 finest he could procure, and the opportunities he has had in the enormous engineering 

 works on the inclines that surmount the Ghauts of the Bombay Presidency have been 

 turned by him to the best account. The Crystals of Apophyllite which he has presented 

 to the Museum are on a scale never before seen, and the minerals are grouped in masses as 

 large as they are varied and beautiful. They are beins; arranged for exhibition in glazed 

 fronts under the table cases. 



Dr. Milligan, f.g.s.. Secretary of the Royal Society of Tasmania, has presented 

 to the Collection several specimens of the very limpid Topaz of Flinders Island. 

 Some of these are rich in crystalline forms^, and the" series exhibits a very complete assort- 

 ment as regards form and colour, and contains also cut specimens of perfect lustre. Among 

 other minerals. Dr. Milhgan has likewise presented several crystals of gold, and specimens 

 of that metal in other native forms, ami in association with "the Tinstone of the Oven's 

 •Diggings. 



Three 



