DEPARTMENT OF MINERALOGY. 193 



A set of pannings from Southern Nigeria has been examined, 

 and the constituent minerals have been determined. 



A chemical and optical investigation has been made of the 

 mineral constituents of the meteoric stones which fell at El 

 Nakhla el Baharia, Egypt ; drawings have been made, and a 

 description of the meteorite has been prepared for publication. 



In the chemical laboratory, quantitative analyses have been 

 made of the olivine and the soluble and insoluble constituents 

 of the El Nakhla meteorite ; a sulpharsenite of lead from Binn, 

 Switzerland ; a phacolite from Co. Antrim ; a pyroxene and a 

 trachyte from the Azores ; and a copper-nickel alloy : many 

 doubtful minerals have been qualitatively analysed. 



V. — Departmental Library. 



Arrangement. — Letters relating to the business of the 

 Department have been arranged. 



Cataloguing and Press-marking. — 677 volumes and 444 

 title-slips have been press-marked. All the accessions, including 

 841 plates, have been catalogued and stamped. 



Proofs of the Library Catalogue have been read and checked 

 against the slip-catalogue in the Department. 



Shelf-lists of all the books have been prepared. 



Accessions. — 48 volumes of separate works, 33 periodicals 

 (in 414 volumes and parts), 45 pamphlets, 15 parts of works, 

 and 33 mining reports have been added to the Library. These 

 were acquired as follows : — 



By presentation.— 9 volumes of separate works, 10 

 periodicals (in 124 volumes and parts), 34 pamphlets, 

 2 parts of works, and 30 mining reports. 

 By purchase. — 34 volumes of separate' works, 21 

 periodicals (in 288 volumes and parts), 9 pamphlets 

 and 11 parts of works. 

 By transfer. — 5 volumes of separate works, 2 periodicals 

 (in 2 parts), 2 pamphlets, 2 parts of works and 3 mining 

 reports. 



In addition to the above, 2 sets of sheets (No. 208 to 229) of 

 the Catalogue of the Museum Libraries have been received from 

 the General Library. 



Binding. — 116 volumes have been bound. 

 Assistance has been given in the General Library during 

 11 days and 5 half-days. 



VI. — Publications. 



The following papers relating to specimens in the collection 

 have been published during the year : — In the " Mineralogical 

 Magazine and Journal of the Mineralogical Society," 1912, 

 vol. xvi : — 



" The Meteoric Stones of El Nakhla el Baharia (Egypt) " : 

 by G. T. Prior (p. 274). 



0.44 N 



