414 Minerals. 



Backstrom (Dr. HELGE MATTIAS). [1865- ] 

 Professor of mineralogy in the Hogskola, Stockholm. 

 Presented, in 1900, a large polished slab of orbicular granite from 



Kortfors, Orebro, Sweden. 



Baddeley (JOSEPH). 



Brought back from Ceylon various mineral specimens, which he 

 presented in 1891 ; one of them was afterwards found to be a new species, 

 and was named baddeleyite. 



Balfour (Prof. ISAAC BAYLEY). [1853- ] 



Collected specimens of basaltic lavas, etc., from the Island of 

 Eodrigues, during the " Transit of Venus " expedition of 1874-1875 ; 

 they were presented by the Lords Commissioners of the Treasury in 

 1876. 



Banks (HENRY). 



Presented, in 1820, several specimens of graphite, showing the mineral 

 in different kinds of matrix, from Borrowdale, Cumberland. 



Banks (Sir JOSEPH, Bart.}. [1743-1820] 



President of the Eoyal Society [1778-1820], and Trustee of the 

 British Museum. 



Presented various specimens ; among them, in 1802 and 1803, frag- 

 ments of the Krakhut, Wold Cottage, and Siena meteorites ; in 1812, a 

 specimen of surturbrand from Iceland ; in 1813, a small nugget of gold, 

 weighing 57 grains (6 69 grams), from County Wicklow ; and, in 1817, 

 yttrotantalite from Sweden. 



Baring (THOMAS). 



Presented, in 1849, a large group of small twin-crystals of calcite, from 

 Bermuda. 



Basset-Smith. (PERCY WILLIAM). 



Surgeon in the Eoyal Navy. 



Presented, in 1889, a collection (about 130 specimens) of granites, 

 quartz-felsites, etc., from China and Borneo. 



Bathurst (HENRY, 3rd Earl). [1762-1834] 



Presented, in 1820, a series of nepheline-syenites and other rocks 

 collected by Dr. H. Nicoll in Sierra Leone. 



Battista (Oavaliere GIOVANNI). 



Presented, in 1876, a series of large polished slabs of Numidian 

 marbles from the quarries of Fratelli del Monte, Oran, Algiers. 



Bauer (F.). 



Presented, in 1811, a specimen of platinum from South America. 



Bayfield (Bear-Admiral H. W.). 



For upwards of a quarter of a century in command of the survey of 

 the Gulf of, and the Eiver, St. Lawrence. 



I .- Collected during a survey of Lake Superior a series of granites, 

 dolerites, etc. ; the specimens (about fifty) were presented by the Lords 

 Commissioners of the Admiralty in 1826. 



