DEPARTMENT OF MINEKALOGY. 147 



been made of a zeolite from the Faroes, and a partial one of a 

 pseudomorph after Pyrrhotite. 



One hundred and thirty-three doubtful minerals have been 

 qualitatively analysed and determined. 



Descriptive catalogues of the specimens of Enargite and 

 Fire-blende have been prepared, and that of Bournonite has 

 been brought up to date. 



Goniometric and optical determinations have also been made 

 on specimens of Aragonite, Wulfenite, Plagionite, Wolfram, 

 Rhodonite, Anhydrite, Crocoite and Pyrites. 



The Pseudomorphs have been examined, and various doubt- 

 ful specimens have been optically and chemically determined. 



The registration and labelling of the rock-specimens 

 belonging to old collections have been completed, and the 

 duplicates have been at the same time set aside. In this 

 connection, and for the slip- catalogue of the rock-sections, 

 285 micro-sections have been examined. 



One hundred and forty-eight micro-sections of minerals, 

 rocks and meteorites have been prepared, and six large speci- 

 mens have been cut and polished. 



New editions of the Student's Index and the Introduction 

 to the Study of Minerals have been issued, and a new Guide- 

 book — namely, " An Introduction to the Study of Rocks," 

 pp. 118, 8vo., 6d. — has been published; a series of rock- 

 specimens, to illustrate the latter, has been in course of 

 selection and arrangement in six window-cases on the northern 

 side of the Gallery ; further, the series of typical rocks 

 referred to therein has been largely extended, and now occu- 

 pies all the 11 window-cases on the southern side of the 

 Gallery. The re-arrangement and extension have been ren- 

 dered feasible through the addition of a new table-case and 

 a new window-case to those already in the Gallery, by the 

 condensation of the Organic Compounds into a single table- 

 case, and by the transference of the Crystal Models in part 

 to a wall-case and in part to drawers. 



The topographical arrangement of the reserve specimens of 

 each mineral species has been continued and completed. 



The mounting of 111 large specimens of minerals on sepa- 

 rate polished stands, the labelling, and the arrangement of 

 these specimens in a long wall-case in the Pavilion, have been 

 completed. 



The compartments containing drawers in the cases of the 

 Gallery have been rendered more dust-proof, and many of the 

 cases have been re-polished. 



Resignation of Assistant. 



The Department has to regret the loss of the services of 

 Mr. H. A. Miers, First-Class Assistant for the past 18 years, 

 as a consequence of his election to the Oxford Professorship 

 of Mineralogy, an office now involving residence in the 

 University. 



0.97. k2 



