ACCOUNTS, &C., OF THE BRITISH MUSEUM. 31 



Information tlirowiug light on many of these specimens, as well as of those in the 

 exhibited iwrtion of the Collection, has been obtained from documents preserved in the 

 Department with dates prior to 1837, when the present systematic catalogue was 

 commenced. 



The minerals in the Cases 40, 41, 42, 57, 58, 59, have been re-groujied, cleaned, and 

 labelled; and the glazed ends of Cases 1, 16, 25 and 47, have been supplied with fittings, 

 and specimens generally remarkable for their magnitude and importance have beai 

 arranged in them. 



Eleven of the cases that had become warped have been carefully repaired, so as to 

 exclude more completely the dust and atmospheric impurities, 



A large number of rock specimens (about 3,000), preserved in one of the basement 

 rooms, have undergone examination and sorting, with a view to the incorporation of the 

 better specimens with the rock series. 



The contents of 140 drawers filled with duplicates of a very inferior class have been 

 removed from the galleries to be preserved in the cabinets in the basement. 



Among the results obtained in the Laboratory during the year have been the investio-a- 

 tion of a new mineral of the Dufrenite class, to which the name Andrewsite has been 

 given ; the analysis of a blue mineral from South Africa which proved to be the Percylite, 

 only known hitherto in the specimen preserved in the British Museum ; and the investi- 

 gation of the Cranbourne Meteorite which is still beino- carried on. 



The following are the more important acquisitions of the past year: — 

 By Presentation : — 



Specimens of Brookite (in a grey compact quartz rock) TreflTgarn Rocks, Pembroke- 

 shire ; Limonite after Marcasite, Fontnell Magna, Dorsetshire ; Websterite from near 

 Clifton Hill, Brighton ; Spencer G. Perceval, Esq., r.G.S. 



Specimens of the Gypsum, Limonite, and Flints, accompanying the Websterite deposit 

 at Brighton ; James Howell, Esq. 



Graphite, Trieben, Styria, Austria ; The Graphite Mining Co., Trieben. 



Serpentine and Brucite ; Unst, Shetland ; T. Edmonston, Esq. 



Specimens of Celestlne from the Nummulitic Limestone of Mokattam, Cairo, Egypt ; 

 Hilary Bauermann, Esq., F.G.S. 



Fine specimen of Vivianite, Cornwall ; Mr. Richard Tailing ; Specimens of Domite, 

 Auvergne ; H. N. Moseley, Esq., b.a. ; Wavellite, near Cork, Ireland; F. M. Jennings, 

 Esq. 



Native Tin, Bolivia ; Gadollnlte of a dark green colour, Ytterby, Sweden ; a large 

 mass of AUanite with crystals, NffisklUen, Arendal, Norway ; and a large crystal of 

 Biotlte, Ytterby, Sweden; Dr. Hugo Miiller, f.e.s. 



Specimens of Quartz with Limonite, Clifton, near Bristol ; Calcareous Geode with 

 crystals of quartz and tufts of aclcular crystals of Gothite from the Red Marl near 

 Bristol; a long stalactite of honey-yellow Calcite from the Great Oolite at Bussage, near 

 Bisley, Gloucestershire ; and Bismuth-Glance in Quartz, Sao Vicente mines, Minas 

 Geraes, Brazil ; Swinfen Jordan, Esq. 



Native Tin with Casslterite, Quartz, Copper Pyrites and Chalybite, Schlaggenwald, 

 Bohemia; argentiferous Iron Pyrites, Angangueo, Mechoacan, Mexico; Enargite with 

 Iron Pyrites, Morococha, Peru ; Chromite, Rorass, Norway ; Dioptase with Quartz and 

 Eisenkiesel, MIna del Limbo, Copiapo, Chili ; Giimbellte, Nordhalben, Hanover ; and 

 two fragments of a stone A.erolite from Spain ; W. G. Lettsom, Esq. 



Specimens of Native Gold from various places in Nova Scotia ; Alexander 

 Heatherlngton, Esq. 



A specimen of Pitchblende from Wheal Owles, St. Just, Cornwall ; Richard Boyns, 



Esq. 



Specimens of earths, rocks, and minerals, from Du Toit's Pan, near Pniel, South 

 Africa, illustrating the character of the diamond-bearing detritus there ; Olivine Sand, 

 Ascension, Lieut. H. Wilberforce Clarke, R.E. A specimen of Highgate resin; N. T. 

 Wetherell, Esq. 



By Purchase : — 



Specimens of Native Gold in a siliceous conglomerate, Antioquia, New Granada,_ South 

 America; disseminated through stibnite in massive white quartz, Heathcote, Victoria, 

 Australia; and associated with Clausthalite, Tilkerodc, Hartz. 



Native TeirunuraTassociated with Native Gold and Iron Pyrites, El Sacramento ; and 

 crystallised Arquerite with Bromargyrite, from Chili. 



A Crystal of Diamond from South Afri(;a ; and some curious crystalline fragments of 

 Boart, from Brazil. 



A specimen of the rare mineral Chileuitc from the mine of San Antonio, Copiapo, 

 Chili. 



A very fine specimen of Argentlle In large Octahedrons witli crystallised and massive 

 Pyrargyrite, Chili ; very fine specimens of Copper-Glance, from the St. Ives Consolidated 

 Mines, "Cornwall ; Pentlandite, Ringerige, Norway ; Zorgite in crystals, Lchrbach, Hartz ; 

 Eucairite,Skrikerum Mine, Sweden; Stetefeldiitc, Belmont, Nevada, U. S.A.; Stephanite 



164. D 4 in 



