DEPARTMENT OF MINERALOGY. 143 



Acquisitions. 



759 specimens have been acquired, namely : — 



311 minerals (including crystallized furnace products), 16 

 meteorites (and casts), and 432 rocks. 



Exchanges of specimens have been arranged with the Field 

 Museum of Natural History at Chicago, the United States National 

 Museum at Washington, Dr. J. E. Stead, F.R.S., of Middlesbrough, 

 and Monsieur H. Buttgenbach, of Brussels. 



The following names added to the Museum List were previously 

 not represented by specimens in the collection : — 



Cornetite, crestmoreite, ektropite, ferrierite, katoptrite, margaro- 

 sanite, ponite, riversideite, stevensite, villamaninite ; also the follow- 

 ing from crystallized furnace products : — Hilgenstockite, silico- 

 carnotite, steadite, vogtite. 



The specimens acquired by presentation (arranged alphabeti- 

 cally according to donors) and by exchange, and a selection of the 

 more important obtained by purchase are as follows : — 



Minerals. 

 By Presentation. 



A further selection from the donor's collection of zeolites, 

 namely, 14 specimens representing five localities in Bohemia and 12 

 specimens from West Paterson, New Jersey. A series of 72 

 selected specimens collected by the donor in 1919 in Derbyshire, 

 Cumberland, and Dumfriesshire, including fiuor, calcite, dolomite, 

 barytes, greenockite, calamine, cerussite, pyromorphite, wolframite, 

 scheelite, pilolite, hausmannite, &c. A large specimen of analcite 

 from County Antrim. A crystal of hacked quartz from North 

 Wales. Various American specimens, including margarosanite, 

 crestmoreite, and riversideite (three species new to the collection), 

 powellite from Utah, pyrites crystals from Colorado, and, as part 

 presentation, a fine group of large crystals of scheelite from Arizona. 

 Also a fine crystal of apatite from Ontario, leucite with melanite 

 from Rome, and pyrites crystals from Japan : hy F. N. Ashcroft, 

 Esq. 



Fluor from Derbyshire, collected by the donor : Miss /:. M. 

 Ashcroft. 



Coal from Thessaly, Greece : by the University of Athens. 



Magnesite from near Bulawayo, Rhodesia : hy A. V. Ballhifchet, 

 Esq. 



Fibroferrite from Cyprus : hy C. E. Barrs, Esq. 



Wolframite with scheelite, molybdenite, &c., from Zinba mine, 

 Tavoy district, Burma : by J. Morrow Campbell, Esq. 



Chromite from New Caledonia, Baluchistan, and Rhodesia : h// 

 the Chrome Company, Ltd. 



Gahnite and chrysocolla from Broken Hill, New South Wales : 

 by Arthur Combe, Esq. 



