148 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



The difficult problem of the Classification of Minerals has 

 been under consideration. 



The " Student's Index " and the larger Guide to the 

 Minerals have been revised for the printer, and new editions 

 have been issued. 



Goniometrical determinations have further been incidentally 

 made on crystals of the following species : — Anglesite. 

 Apatite, Augelite, Barytes, Calcite, Chessylite, Cinnabar, 

 Edingtonite, Epidote, Fireblende, Linarite, Malachite, 

 Marshite, Monazite, Mohsite, Plagionite, Quartz, Sphene, 

 Stephanite, Tetrahedrite, Topaz, Valentinite, Wulfenite, 

 Zircon. 



Crystallographic and chemical investigations involving 

 quantitative analyses have been made on specimens of 

 Andorite, Sundtite and Webnerite, having for result the 

 establishment of the identity of these species. 



Quantitative chemical analyses have also been made of 

 Tripuhyite, a new antimonate of iron from Brazil, Plagionite 

 from Arnsberg and Wolfsberg, Jamesonite from Bolivia, 

 Senaite, a new Ilmenite-like mineral (containing lead) from 

 Brazil, and Dolomite from the Transvaal : 122 doubtful 

 minerals have been qualitatively analysed and determined ; 

 specimens of doubtful minerals containing the rare element 

 Germanium have also been qualitatively examined. A 

 chemical and physical examination has been made of a liquid 

 found in a sarcophagus at Sidon. 



The large collections of Italian and Alpine rocks brought 

 together by Cavaliere G. P. Jervis have been topographically 

 arranged in the drawers, and descriptive labels prepared by 

 Cavaliere Jervis have been placed with the respective 

 specimens. 



In connection with the slip-catalogue of the rock-sections 

 83 micro-sections have been examined. Additional large rock 

 specimens have been mounted on blocks and labelled, and the 

 series has been extended to fill the two wall-cases at the 

 eastern end of the Mineral Gallery. 



The fittings of the lower parts of two of the Pseudomorph 

 cases have been altered, and the larger Pseudomorphs have 

 been mounted on blocks, labelled, and arranged thereon. 



The re-arrangement of the mineral specimens in the drawers, 

 rendered necessary by the growth of the Collection, has been 

 continued. 



One hundred and seven boxes of mineral specimens have 

 been received and unpacked during the year ; 86 boxes have 

 been despatched. 



Departmental Library. 



To the Departmental Library have been added 125 separate 

 works (in 199 volumes), Gl memoirs and pamphlets, and 28 

 parts of works not yet completed. 



