144 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



A reproduction in plaster of the vertebral column of 

 Arsinoitherium Las been made, for incorporation in a 

 complete model of the skeleton of this Egyptian Eocene 

 mammal. 



A mandible of Tetrabelodon, from the Loup Fork Forma- 

 tion of Kansas, has been prepared and mounted for exhibition. 



Reptilian remains from the Karoo Formation of South 

 Africa have been extracted from hard matrix. 



Skeletons of Peloneustes, Pliosaurus, and oth«r reptiles, 

 from the Oxford Clay of Peterborough, have been prepared 

 for study and exhibition. 



Fishes from the Chalk of Kansas, and fish-remains from 

 the English Chalk have been prepared for study and 

 exhibition. 



A piece of fossil wood from the London Clay, bored by 

 Teredo, has been hardened, prepared, and mounted. 



Plaster casts of skulls of Okapi, and numerous plaster 

 casts for exchange, have been made. 



Various recently acquired fossils have been trimmed 

 preparatory to incorporation in the collection. 



III. — Printing of Labels. 



The Museum Printer continues to devote one day each 

 week to the preparation of labels for the Department of 

 Geology ; but a Boy Attendant in the Department composes 

 and prints most of the labels, and has this year prepared 

 upwards of 966 (and 6,530 prints of these). 



lY .—Exchanges and Duplicates. 



Exchanges of plaster casts and duplicate fossils have been 

 made with the following institutions : — Senckenberg Museum, 

 Frankfurt; Pal seontological Museum, Munich ; Yale Univer- 

 sity Museum ; and Arnherst College, U.S.A. Small exchanges 

 have also been made with Messrs. F. H. Butler, W. Storrs 

 Fox, A, Escuti Orrego, and William Taylor. 



Duplicate fossils have been presented to University College, 

 London. Small duplicates and plaster casts for purposes of 

 research have been supplied to Dr. F. Beyschlag, Prof. C. 

 Deperet, Dr. Otto Eeis, and Mr. I. A. Stigand. 



y. — Departmental Library. 



The additions to the Library, which have been registered, 

 stamped, catalogued, and press-marked, comprise 177 new 

 works and pamphlets, of which 48 were purchased and 

 129 presented; 575 parts of serials in progress, of which 224 

 parts were purchased and 351 presented ; 291 maps, of which 



