90 ACCOUNTS, ETC., OF THE BRITlSB MUSEUM. 



Leyden, Berlin, Lisbon, Paris, and Calcutta ; also a number of 

 " Challenger " duplicates were utilised in exchange for other 

 deep-sea animals with the Museums of Copenhagen and 

 Calcutta. 



V. — Departmental Library. 



The Departmental Library has acquired, by purchase, pre- 

 sentation, or exchange, 38 works in the same number of 

 volumes, besides G81 new numbers of periodicals and works 

 in progress ; of the latter, 49 volumes have been completed 

 within the year. The total number of works now in the 

 Library is 9,789, represented by 15,705 volumes. 



All the additions during the year have been entered in the 

 Purchase Book, catalogued, press-marked, stamped, and 

 placed ; 137 volumes have been bound. 



VI. — Catalogues. 



The following Catalogues have been issued during the year 

 1891 :— 



L Catalogue of Birds, Vol. XIX., Picarise (8vo. 484 pp., 13 

 plates), by P. L. Sclater and G. E. Shelley. 



2. Catalogue of Birds, Vol. XX., Psittaci (8vo. G58 pp., 18 

 plates), by T. Salvadori. 



8. Illustrations of typical specimens of Lepidoptera Hetero- 

 cera. Part VIII. — The Lepidoptera Heterocera of the Nilgiri 

 District (4to. 144 pp., 18 plates), by G. F. Hampson. 



In addition to the above works. Vols. XVI. and XVII. of 

 the "Catalogue of Birds" are in the press, and the manu- 

 scripts of Vols. XXI , XXIL, arid XXIII. of the " Catalogue 

 of Birds," the " Catalogue of Snakes," " Illustrations of 

 Typical Lepidoptera Heterocera," Part IX., a " Catalogue of 

 British Echinoderms," and a " Catalogue of Madreporarian 

 Corals," are in course of preparation. 



The following are the most important reports or descriptive 

 papers which have been prepared by the departmental staff, 

 in connection with various parts of the collection, especially 

 recent acquisitions, and have been published in scientific 

 journals : — 



1. "On some Antelopes collected in Somali-land by Mr. T. 



W. H. Clarke;" 



