REPORT OF THE SECRETARY. 55 



posium on the principles involved in fixing salaries, and for addresses 

 by Prof. Irving Fisher on the purchasing power of salaries and by 

 Doctors McClung and Howe on the work of the National Research 

 Council; for the Smithsonian branch of the Federal Employees' 

 Union No. 2, and for various other groups of civil employees for 

 organizing, preparing data, and otherwise helping toward the classi- 

 fication of the Government forces in Washington, including Federal 

 workers interested in bookkeeping, accounting, and auditing, the 

 clerical force of the Department of Agriculture, the Federal pho- 

 tographers, the marine and stationary operating engineers, the sub- 

 committee on personnel of the reclassification committee, and mem- 

 bers of the Museum's scientific staff. 



MISCELLANEOUS. 



Under the auspices of the Arts Club of Washington, a special ex- 

 hibition of illustrations of the famous bell towers of the world was 

 held in rooms 46 and 47 of the Natural History Building from Octo- 

 ber 2 to 31, inclusive. The Arts Club has undertaken to enlist the 

 cooperation of all lovers of freedom in furthering a plan to erect at 

 the Nation's Capital a national peace tower with the largest and finest 

 carillon that the most expert bell founders of the world can provide, 

 as a tribute to the heroic resistance of Belgium, in recollection of our 

 dead and those of our allies, and in enduring commemoration of the 

 great victory won over imperialism. 



An exhibition of drawings, photographs, and paintings illustrat- 

 ing the activities of the Air Service of the United States Army at the 

 front and in America was opened to the public from October 4 to 

 October 29, 1919, in the west north range, ground floor, Natural His- 

 tory Building. Capt. Otho dishing was in charge of the exhibit. 



The Museum library was increased by 1,932 bound volumes and 

 1,581 pamphlets, mainly obtained by gift and exchange, bringing the 

 total in the library up to 56,617 volumes and 88,690 pamphlets and 

 unbound papers. While there were no exceptional pieces contributed, 

 there was a collection of special importance — the personal library of 

 Dr. Charles D. Walcott. His intimate association with the paleon- 

 tological collections of the Museum makes the Museum sectional 

 libraries of vertebrate and invertebrate paleontology difficult of 

 duplication. 



The publications for the Museum for the year consisted of the An- 

 nual Report for 1919; volumes 54, 55, and 56 of the Proceedings; 

 volume 21 of Contributions from the National Herbarium, Bulletins 

 Nos. 106 (text), 107, and 108, a very small edition of Bulletin No. 

 103, and 42 separate papers. The total distribution of Museum publi- 

 cations aggregated 81,936 copies. 



