ACCOUNTS, &C., OF THE BRITISH MUSE 



UM. 



37 



The recorded number of persons who have visited the Department for purposes of 

 study is 1,262, among whom have been students who have devoted daily, for consecutive 

 days, many hours to the minute crystallographic study of specimens in the Collection, 



The following are the most important acquisitions made by the Department durino- the 

 twelvemonth : — ° 



Minerals : — A dditions by Presentation : — 

 By the munificence of Beyiri/ Ludlam, Esq., F.G.S., one of the most valuable and re- 

 splendent specimens in the Mineral Collection has been added to it during the past year 

 in the form of a mass of pure Proustite (tribasic Sulpharsenate of Silver), in large and 

 bright transparent ruby-coloured crystals, from Chanarcillo, Copiapo, Chili. Like the 

 topazes from the Urulga river, this beautiful specimen is only occasionally exposed to 

 view, in order that the light may not destroy its transparency. 



By Arthur Boyle, Esq. : — 

 Bismuth-Glance, Balhanna mine. South Australia ; Noum^ite, Ballad mine, Noumtea, 

 New Caledonia. 



By Dr. S. H. Warth :— 

 Sylvine from the Mayo salt mines, Punjaub, India. 



By Lord Walsinyhame : — 

 A large spherical nodule of Marcasite, Thetford, Norfolk. 



By the Hon. Robert Marsham : — 

 Diamond crystal in conglomerate. Brazil. 



Specimens of Quartz with chalybite and mesitite, San Juan del Rey mines, Brazil. 

 A large pebble of Topaz, Ceylon. 

 Turquoise, Persia. 



By Captain H. Cautley : — 

 Stalactitic Limonite, near the Blue Mountain, Virginia, U.S.A. 



By Dr. Joseph Leidy of Philadelplda : — 



A very large doubly terminated crystal of Scapolite, Gouverneur, St. Lawrence Co., 

 New York, U.S.A. 



Crystals of Perofsklte and Hydrotitanite, from Magnet Cove, Hot Sprino-s Co., Ar- 

 kansas, U.S.A. 



By W. G. Lettsom, E^q. : — 

 Chalcedony, Uruguay, South America. 



Additions by Purchase and Exchange : — 



Native Gold in calcite, Solferino reef. New South "Wales. 



Native Gold, partly invested with a thin film of galena, from the same reef. 



Native Gold, Hibernia reef, Sandhurst, Victoria, Australia. 



Native Gold, minutely disseminated through a spongy quartz, Manghine mine. River 

 Diahout, New Caledonia. 



Large specimen of Native Lead on granular massive hausmannite, Pajsbero- iron mines 

 Wermland, Sweden. 



Small crystals of Diamond of various forms, Brazil. 



Tocornalite, Chanarcillo, Copiapo, Chili. 



Chilenite, San Antonio mine, Copiapo, Chili. 



Arite, Ar Mountain, Eaux-Bonnes, Lower Pyrenees, France. 



Alabandite in large crystals, Nagyag, Transylvania. 



Crystallised Cinnabar, Almaden, Spain. 



Hauerite, Kalinka, Hungary. 



Marmatite, Marmato, Western Andes, New Granada, South America. 



Pyrrhotite with mesitite and apatite on quartz, San Juan del Rey mines, Brazil. 



Bjelkite, Bjelke mine, Nordmark, Wermland, Sweden. 



A large crystal of Pyrargyrite, Valenciana mine, Guanaxuato, Mexico. 



Freieslebenite, Hiendelencina, Guadalajara, Spain. 



Zinckenite, Wolfsberg, Hartz. 



A very large botryoidal mass of purple Fluor, Derbyshire. 



Cotunnlte, Vesuvius. 



Hydrotalcite, Snarum, Norway. 



Walleriite, Aurora mine, Nya Kopparberget, Sweden. 



Melanofjlilogite Avith native sulphur, Girgenti, Sicily. 



Large specimens of Aragonite, Girgenti, Sicily. 



Well-crystallised Strontianite, Drensteinfurt, Mlinster, Westphalia. 



Chalybite in large rhombohedrons. Sierra Nevada, Grenada, Spain. 



Calamine, Santander, Spain. 



Malachite in crystals, Betzdorf, Siegen, Prussia. 



Atlasite with malachite. La Cortadero, Chili. 



,. 159. E3 Chondrodites 



