REPORT OF THE SECRETARY. 37 
The Museum library was increased by 2,172 volumes and 2,614 
pamphlets and unbound papers, mainly procured by gift or exchange. 
Among the more important acquisitions was a set of catalogues of the 
art collections of J. Pierpont Morgan, presented by J. Pierpont Mor- 
gan, jr., the valuable library of Dr. Eichard Eathbun, relating to the 
museums of the world and to natural history subjects, the gift of 
his heirs, and the 12 volumes of its Humanistic Series, donated by 
the University of Michigan. The library now contains 54,685 vol- 
umes and 87,109 pamphlets and unbound papers. 
Eespectfully submitted. 
W. DE C. EaVENELj 
Administrative Assistant to the Secretary 
in charge U. S. National Museum. 
Dr. Charles D. Walcott, 
Secretary of the Smithsoriian Institution. 
August 25, 1919. 
12573°— 21 4 
