REPORT OP NATIONAL. MUSEUM, 1924 75 



As usual the United States Geological Survey has transmitted a 

 number of series illustrative of the work of its members. These in- 

 clude silver ores from the vicinity of Chloride and Kingman, Ariz., 

 and from the Aspen district, Colo., collected and described by Edson 

 S. Bastin; rocks illustrating the Kiddle, Oreg., folio, by J. S. Diller; 

 rocks and minerals illustrating a reconnaissance through northern 

 Idaho and northwestern Montana as described by F. C. Calkins in 

 Bulletin 384 of the United States Geological Survey ; typical ore and 

 rock specimens described in Bulletin 741 ; drill cuttings from various 

 oil wells in Texas studied by M. A. Goldman; and manganese ores 

 and minerals from Virginia, Georgia, and Alabama, studied by 

 H. D. Miser and G. W. Stose. In addition to these there were 

 transferred one large exhibition specimen of manganese oxide from 

 Philipsburg, Mont., and a large rhodochrosite from Butte. The 

 latter, with its handsome pink color, affords a pleasant relief from 

 the monotonous black of most of the manganese ores. 



A valuable lot of ores and minerals, chiefly of the rarer metals, 

 was transferred from the Bureau of Mines. This is not newly ac- 

 quired material but represents rather an accumulation by members 

 of the staff of the bureau in their technological investigations. 



An extensive series of minerals and ores from Czechoslovakia was 

 received as a gift from the Masaryk Academy of Labor at Prague, 

 and examples of bauxite, alunite, and radioactive minerals from the 

 same country through exchange with Prof. Jaroslav Jahn, Brno. 



The most noteworthy accession to the series of building and orna- 

 mental stones is a large slab of green f uchsite marble from Rutland, 

 Vt., presented by Henry W. Clement. Other gifts to this collection 

 include cubes of Briar Hill sandstone, from the Briar Hill Stone Co., 

 Glenmont, Ohio ; a sample of Colorado travertine, from the Colorado 

 Marble & Stone Co., Denver ; a slab of soapstone from the Virginia 

 Alberene Corporation ; " Buckingham " roofing slate from the Wil- 

 liams- Arvonia Slate Corporation, Riehmond, Va. ; and 13 samples of 

 Jamaica marbles from Dr. C. A. Matley, government geologist of 

 Jamaica. 



By far the most interesting accession to the meteorite collection 

 was a 55-pound iron found some years ago in San Juan County, N. 

 Mex., near the common four corners of New Mexico, Colorado, Ari- 

 zona, and Utah. This was secured through an arrangement with the 

 late R. C. Hills, of the Colorado Museum at Denver, whereby the 

 material was to be sliced and exchanges made for the benefit of that 

 museum, a portion to be retained for the National Collections. Other 

 additions acquired through exchanges include a practically complete 

 individual of meteoric iron weighing 14,530 grams, found in Chile 

 in 1905 ; one-half of a mass of meteoric stone which weighed 20 kilo- 



