REPORT OF NATIONAL MUSEUM, 1&25 75 



quadrangles, and the Batesville manganese district of Arkansas; 

 and analyzed potash salt samples from the Means well, Loving 

 County, Tex. 



A large block of Quincy granite with a vein of pegmatite was 

 acquired by purchase. 



Chiefly through exchanges a number of additions have been made 

 to the meteorite collection. From Harvard University were ob- 

 tained examples of the Cynthiana, Ky., stone; Coahuila, Mex., and 

 New Baltimore, Pa., irons. From Prof. H. H. Nininger, McPher- 

 son, Kans., were acquired portions of two individuals of the Bren- 

 ham stony iron, and slices of the Ivanpah, Chilkoot Inlet, and Tuc- 

 son (Carleton) irons. The British Museum (Natural History) 

 furnished seven irons. La Primitiva, Chinautla, Barranca Blanca, 

 Tamarugal, Nedagolla, Kenton County, and Smithville. Two ex- 

 amples of the Olivenza, Spain, stone were obtained from C. Wendler, 

 Geneva; and Ward's Natural Science Establishment furnished a 

 small piece of the Eussell Gulch iron. A 490-gram specimen of the 

 interesting stone which fell near Johnstown, Weld County, Colo., in 

 July, 1924, was secured by purchase. The above are all of moderate 

 size and, while important from a scientific standpoint, add little to 

 the exhibition series. An interesting example of synthetic nickel- 

 iron alloy containing 11.9 per cent nickel, was received as an ex- 

 change from Dr. Carl Benedicks, Stockholm, Sweden. 



Col. Washington A. Roebling, of Trenton, N. J., is credited with 

 six gifts comprising 51 specimens of minerals, acquired chiefly 

 through the fund deposited by him for the purchase of new material. 

 A group of axinite crystals from California, which are thought 

 to be the largest crystals of this mineral yet found, is probably 

 the most noteworthy of these, but an interesting garnet of the 

 spessartite variety, also from California; a large crystal of colum- 

 bite from the Etta mine. Keystone, S. Dak.; a number of excep- 

 tional specimens of Franklin Furnace minerals; and rare species 

 from Norway, Sweden, and other foreign localities, have added 

 materially to both exhibition and study series. 



The department is indebted to Alpheus F. Williams, general 

 manager of the De Beers Consolidated Mines, Kimberley, for a 

 crystal of the new mineral afwillite^ a hydrous calcium silicate, 

 discovered by the donor in the Dutoitspan mine and described by 

 John Parry and F. E. Wright in the Mineralogical Magazine lor 

 March, 1925. Up to the present time less than a pound of this 

 mineral has been found, and the Museum is fortunate in having a 

 representative in its collection. 



Some fine minerals for the exhibition series were furnished through 

 Frank L. Hess, honorary custodian, the most notable being a group 

 of large wulfenite crystals from the mines of the Ahumada Mining 



