BRITISH MUSEUM (NATURAL HISTORY). 85 



R. W. D. Burney ; Pteropoda, by Miss A. L. Massy ; 

 Anatomy of Peleeypoda, by R. H. Burne ; Amphineura 

 and Heteropoda, by T. J. JdJvans ; Larvae of Echinoderma, 

 by Prof. E. W. MacBride, f.r.s. ; Sponges, Antarctic, by 

 R. Kirkpatrick, Non -Antarctic, by Prof. A. Dendy. 



Monograph of Lacertidse, by G. A. Boulenger, f.r.s. 



Catalogue of Moths, Supplement, Vol. ii., by Sir G. F. 

 Hampson, Bart. 



Handbook of British Culicidse (Mosquitoes), by W. D. 



Lang, sc.D. 



Demonstrations. 



With the sanction of the Trustees, a series of five demonstrations 

 on the subject of Vertebrate Animals was given at the Museum by 

 Mr. W. S. Rowntree, b.sc, f.l.s., on Saturday afternoons, fort- 

 nightly, during the Lent term, under arrangements made by the 

 University of London Extension Board. 



General Library. 



The additions to the General Library during the year have 

 been : — 



By purchase - 92 volumes. 

 By transference 

 from other 



Departments - 2 A^olumes. 



By donation - 431 volumes, 17 maps, and 23 photographs. 



Total - - 525 17 23 



All the volumes and maps have been catalogued, press-marked 

 and put in their places, while 310 volumes have been bound in 194, 

 and 2 have been repaired. 



The extent of the collection on the 31st of December, 1919, was 

 47,758 volumes, 5,948 maps, and 1,105 photographs (not including 

 those in the Owen collection of drawings, &c.). 



The accessions to the Departmental Libraries have also been 

 catalogued as they came in, and duplicate transcripts of the titles 

 have been returned with the books. 



Altogether 1,943 title-slips have been written, 138 re-written, 

 and 2,381 revised (independently of those prepared for printing). 



There are now, on a rough estimate, 105,127 volumes (exclusive 

 of continuations and minor separata) and 6,289 maps in the whole 

 building. 



The number of visits paid to the General Library during the 

 year 1919 by Students and others (irrespective of the Staff and 

 persons to whom the use of a key is granted) was 1,418. 



Donations have been received from a great number of Museums, 

 Academies, and other corporate bodies, as well as from personal 

 donors. 



