154 Field Museum of NATiit\L History — Reports, Vol. V. 



interest to their work. In taking account of the sales of the Publications, 

 it is interesting to note the incrca<nnK number sold to individuals and 

 institutions as well as to txxikscllers. The stock of Publications and 

 Imlf tone's was moved during the year from Room 64 to Room 11. Two 

 more c.i' wcrv purchAsed to accommodate the halftones and sine 



etching- i.i. .irc filed numerically to date. 



Tmi LiBiuRv. — The l>ooks and pamphlets accessioned during the 

 year were 1,641, bringing the total numl)cr of books and pamphlet*; in 

 the Library to 71,316, which arc distributed as follows: 



General Libnuy 45.737 



Dopartroent of Anth^<t>>^>{;y 3.553 



Department <  ' 7.193 



Department « ,; .• 10.276 



Deportment.;/.  ,:v 4.557 



The operations in the Library during the year were largely normal 

 in character and the routine work has gone on >xnthout interruptioa. 

 The resources of the Library continue to be taxed by the members of 

 the scientific stafT for material desired in their research work and in 

 the quest for information in working up collections for reference or 

 exhibition that have been received without data. The fourth year of 

 the war brings a great decrease in the literary output of all foreign 

 countries, ( .lly in works on natural sciences. Exchanges have 



practically ^ i with some foreign countries, and from others receipts 

 have been irii^^ular. Notwithstanding these conditions, there has been 

 a gratifpng increase of accessions over last year of two hundred and 

 fifty books and pamphlets. The outstanding event of the year is the 

 purchases made and presented by Mr. Edward E. Ayer of many rare 

 and l)eautifully illustrated works for The Edward E. Ayer Ornithological 

 Library. Among these are: Gould, Icones Avium, 2 parts, 1837-38; 

 Gray, Genera of Birds, 3 volumes, 1844-49, one of the works that rank 

 in Ijcauty of execution with Gould's and Audubon's works already in 

 this library; Edwards, Natural History Birds, 4 volumes, 1802-6; 

 BufTon, Histoirc Naturelle dcs Oiseaux, 20 volumes, 1770-86; Booth, 

 Rough Not/-, on Birds, 3 volumes; Thorbum, British Birds, 4 volumes, 

 1915-16; S -n, Birds of Brazil and Mexico, 1841; Thienemann, 



Die Vogel Europas, 1825; Lcvaillant, Oiseaux d'Am^rique etdes Indes, 

 volume I, 1801; Oates and Blanford, Fauna of British India, including 

 Ceylon and Burma. Birds, 4 volumes, i88q-o8. Subscription was 

 entered to Mathews* wonderfully illustrated "Birds of Au'^tralia" of 

 which five • ^ and five numlxrrs of volume VI have been 



received. 1 jui ^ lor books have been filled, adding fifty-four 



books and ^,,..^...,.is to the Departmental Libraries. Among those 



