Minerals. 381 



1887. 



Total acquisitions 920, including : 



Several fine large masses of precious opal in the matrix; 

 from Queensland : presented by Prof. N. Story-Maskelyne, F.R.S. 



The " Colenso " diamond, a large yellowish octahedron, with 

 rounded edges and triangular markings on the faces, weighing 

 130 carats (27 grams) ; and the " Edwardes" ruby (corundum) : 

 presented by Prof. John Ruskin. 



Several deep-red crystals of almandine, embedded in mica- 

 schist ; from Fort Wrangell, Alaska : purchased. 



Brilliant, greenish-blue crystals of apatite, implanted on large 

 crystals of orthoclase and quartz, on granite ; from Luxullian, 

 Cornwall : purchased. 



1888. 



Total acquisitions 260, including : 



A group of brilliant crystals of apophyllite of a very pale- 

 purplish shade of colour ; from Guanaxuato, Mexico : purchased. 



Five large, isolated, pyramidal crystals of scheelite from 

 Rothlaue, Gutannen, Switzerland : purchased. 



A large group of crystals of witherite from Fallowfield mine, 

 Hexham, Northumberland : purchased. 



A large group of numerous prismatic crystals of calcite, with 

 one twinned crystal of much larger size, on a matrix of red iron- 

 ore ; from Egremont, Cumberland : purchased. 



1889. 



Total acquisitions 402, including : 



A large crystal of black tourmaline, with sharp termination ; 

 from Madagascar : presented by the Rev. J. Wills. 



Various American minerals : presented by Colonel J. Willcox. 



An aggregate of large, green cubes of fluor, from Muscolonge 

 Lake, Jefferson County, New York : purchased. 



A selection (58 specimens) of faceted precious stones (sphene, 

 spinel, sapphire, zircon, etc.), from Mr. J. R. Gregory's collection : 

 purchased. 



1890. 



Total acquisitions 586, including : 



Specimens of awaruite (terrestrial nickel-iron) and serpentine, 

 from New Zealand : presented by Prof. G. H. F. Ulrich. 



A fibrolite hatchet from France : presented by Mr. C. Seidler. 



