164 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



In the chemical laboratory two quantitative analyses 

 have been made of striiverite, four of ilmenorutile, one of 

 tennantite, three of hopeite, tv^o of tarbuttite, and one of 

 parahopeite, Mobile determinations of titanic acid have been 

 made for a specimen of ilmenorutile from Evje, Norway, and 

 for four specimens of ferriferous rutile. Experiments have 

 also been made on the separation and determination of 

 niobium, tantalum, zirconium and titanium. Further, many 

 doubtful minerals have been qualitatively analysed. 



Museum Publication. 

 Report on the Rock-specimens collected during the 

 " Discovery " Antarctic Expedition, 1901-4 : by G. T. Prior, 



M.A., D.SC, F.G.S. 



Independent Publications. 



Apart from the official publications issued by the trustees, 

 the following papers, etc., relati^^e to specimens in the col- 

 lection, or to mineralogical theory and method, have been 

 published during the year by members of the staff of the 

 Department. 



Note on " Feather-ore " : identity of " Domingite " 

 ( = " Warrenite ") with Jamesonite : by L. J. Spencer, 

 M.A., F.G.S. 



Notes on some Bolivian Minerals (Jamesonite, Andorite, 

 Cassiterite, Tourmaline, etc.): by L.J. Spencer, M.A., F.G.S. 



A (fourth) list of new mineral names : by L. J. Spencer, 



M.A., F.G.S. 



Ilmenite from Jacupiranga, Brazil : by G. F. Herbert 

 Smith, M.A., D.SC, F.G.S. 



Red Silver minerals from the Binnenthal, Switzerland : 

 by G. F. Herbert Smith, M.A., D.sc, F.G.S., with analyses by 

 G. T. Prior, M.A., D.sc, F.G.S. 



A new model of Refractometer : by G. F. Herbert Smith, 



M.A., D.sc, F.G.S. 



Baddeleyite from Ceylon : by G. S. Blake, a.r.s.m., b.sc, 

 F.C.S., and G. F. Herbert Smith, m.a., d.sc, f.g.s. 



Miscellaneous. 



During the year the large collection of minerals, com- 

 prising about 3,000 specimens, collected by the late Miss 

 Caroline Birley, was removed to the Museum and examined. 

 According to the terms of the bequest of Miss Birley, the 

 Museum was allowed a first selection from this fine collection^ 

 and 439 specimens were chosen for the General Collection, 

 and 460 specimens for the formation of a series that should 

 be available for students. 



The preparation of slip-catalogues of species has been 

 continued. This work has been completed for the arsenides 

 and sulphides (including the large series of blende, galena, 



