DEPARTMENT OF MINERALOGY. 145 



" Introduction to the Study of Rocks " have been revised, and 

 new editions have been issued. 



Experiments have been made with a view to prevent the 

 reflection due to the glass of the window-cases of the gallery 

 from interfering with the examination of the specimens. 



Departmental Library. 



To the Departmental Library have been added 151 separate 

 works (in 171 volumes), 85 memoirs and pamphlets, and 25 

 parts of works not yet completed. 



Of the above, 65 volumes and all the memoirs and pamph- 

 lets were acquired by presentation or transfer ; all of them, 

 including 805 plates, have been registered and stamped. 



Visitors. 



The number of visits recorded as made to the Department, 

 for purposes of consultation or study, is 1,841 ; of these, 986.. 

 ,were more especially for purposes of study. 



Exchange. 



An exchange of specimens has been negotiated with Mr. 

 C. F. Pech, of Berlin. 



Duplicates. 



Two hundred duplicate mineral specimens have been pre- 

 sented to the University Extension College, Reading. 



Three duplicate specimens of meteorites have been pre- 

 sented to Don Miguel Merino (for the Madrid Natural History 

 Museum) in recognition of his generous present of a fragment 

 of the meteorite which fell at Madrid on 10th February, 1896- 



Acquisitions. 



One thousand and fifty-six specimens have been acquired 

 during the year 1896, namely : — 412 minerals, 632 rocks, 

 and 12 meteorites. These have been registered, numbered, 

 labelled and incorporated with the collection. The more 

 important of them are as follows : — 



Minerals. 

 By Presentation : 

 Berzeliite ; Langban, Sweden : by Professor A. H. Church, 



F.E.S. 



Chessylite ; Copper Queen Mine, Arizona, U.S.A. : by J. 

 Douglas, Esq. 



Cinnabar in Coal ; Mieres, Asturias, Spain : by H. R. 

 Merton, Esq. 



Corundum ; Salem, Madras ; and Zircon ; Central Aus- 

 tralia : by E. W. Streeter, Esq. 



0.125. K Corundum 



