DEPARTMENT OF GEOLOGY. 127 



Actinozoa registered during the past year 838. 

 Protozoa and Rhizopoda registered in the year 3,491. 



Fossil Plants. — A silicified tree-trunk from the Purbeck 

 beds of the Isle of Portland, has been mounted on a pedestal, 

 and fixed against the wall on the East side, between Wall- 

 cases 12 and 13. 



A fine stem of Mantellia nidiforinis, also from the Pur- 

 beck dirt-bed, Portland, has been mounted on a stand in the 

 centre of this Gallery. 



A new mahogany base has been made for the large Coni- 

 ferous tree-trunk in the centre of the Gallery. 



Fossil Plant remains registered 210 specimens. 



Gallery No. 11. The MS. labels in the exhibited series of 

 the Searles V. Wood Crag Mollusca (1,038 in number) have been 

 carefully revised and replaced by printed labels, giving the 

 genus, species, formation, and locality, also a reference to the 

 place where figured and described. 



The arrangement of the Sowerby Collection has been com- 

 pleted ; all the specimens of Cephalopoda are placed in Wall- 

 case 6 ; the large specimens to the number of 130 have been 

 mounted on blocks with a printed label attached to each. 



The " type specimens," illustrative of Damon's " Guide to 

 the Geology of Weymouth and the Isle of Portland," chiefly 

 belonging to the Invertehrata, have all been registered, 

 named, and mounted, and incorporated with the general 

 Museum series. 



Stratigraphical Collection (Gallery 11.) — A large series of 

 British fossils has been selected to form a typical strati- 

 graphical collection for this Gallery ; 1,290 of these are named 

 and labelled, and a nearly equal number remain to be named 

 and added to the series. 



Tracks and Markings of Invertebrata, Wall-case 7. 

 Numerous additions have been made to this series of speci- 

 mens . 



Specimens registered 72. 



Department Library. — (Gallery No. 9.) 



The work of stamping and cataloguing the various additions 

 to the Library has been carried on as usual, during the past 

 year. The slips for a general Catalogue have also beenprepared. 



79 old slip-titles have been revised. 

 3,061 new slip-titles have been written. 

 1,938 books and 1,685 maps have been catalogued, and 

 66 boxes of pamphlets have been arranged and indexed. 



102 volumes have been bound. 



0.81. In 



