DEPAKTMENT OF GEOLOGY. 143 



Number of specimens of Echinoderma registered : Echi- 

 noidea, 786 ; Asteroidea and Ophiuroidea, 123 ; Crinoidea, 

 874; Cystidea, 4; Blastoidea, 24; Total, 1,811. 



Anthozoa (Gallery 10). — The Jurassic Corals from the 

 Inferior Oolite and Lias formations have been arranged 

 and labelled, while registering and incorporating recent 

 acquisitions. 



The typical collection of British Jurassic Corals exhibited 

 in table-cases 15 and 16 has been completed. 



Number of specimens of Anthozoa registered, 2,567. 



Hydrozoa, Porifera, and Protozoa (Gallery 10). — Various 

 specimens of fossil jelly-fishes, hitherto scattered, have been 

 placed together on exhibition in wall-case 6c. 



The Receptaculitidae have been separated from the Porifera 

 and exhibited together in table-case 15. 



A large collection of Foraminifera, chiefly from the Chalk 

 of Riigen, has been sorted and mounted on wooden slips 

 preparatory to study. 



The exhibited Radiolaria in table-case 15 have been re- 

 arranged, and a set of models illustrating the structure of 

 the various orders has been modified in shape and colour ; 

 all these have been provided with explanatory labels. A 

 model of a nummulite has had the various parts labelled, and 

 is exhibited in table-case 16. Beside it has been placed a 

 set of nummulites, with enlarged drawings and explanatory 

 labels, to illustrate dimorphism in the Foraminifera. 



Number of specimens registered, 1,205. 



Plantce (Gallery 10).— Recent acquisitions have been 

 labelled and incorporated in the collection. 



A large block of petrified plant-remains from the Coal- 

 measures of Lancashire, has been mounted for exhibition on 

 a separate stand. 



Number of specimens of Plantas registered, 242. 



Tracks, &g., and Stratigraphicai Collerction (Gallery 11). 

 — Part of wall-case 8 has been rearranged to accommodate 

 some recently acquired specimens from the Wealden of 

 Sussex. 



A specimen of " wash-out " from the Shop pit. Ravens- 

 worth Colliery, co. Durham, has been placed on exhibition 

 with an explanatory diagram and label in wall-case 1. 



II. — Mounting, etc. 



The restored skeleton of Diprotodon, from the Pleistocene 

 of Australia, has been mounted on ironwork. 



A skeleton of Halitherium has been prepared and mounted 

 on ironwork. 



