240 
authors themselves. A wide range of subjects is covered, and the 
Library is probably one of the best of its kind in this comparatively 
new science. 
The Skiff collection, containing many valuable books of ref- 
erence on minerals, mining and metallurgy. ( This collection has 
been placed in the Departmental Library of the Department of 
Geology, West Annex.) 
The special library of the Department of Mines, Mining and 
Metallurgy of the World's Columbian Exposition, gathered for 
exhibition in the Mining Building by the Chief of that Depart- 
ment. Includes sets of periodicals bearing on these subjects, and 
complete sets of geological publications issued by the Government. 
The collection of Russian works on forestry, presented by 
the Imperial Russian Commission to the W^orld s Columbian Ex- 
position. 
The ornithological library purchased of C. B. Cory and con- 
taining the proceedings and transactions of the leading ornitho- 
logical and zoological societies and the rare and standard refer- 
ence books of the working ornithologist. 
Upon the cases are the busts of the eminent scientists and 
naturalists: Geoffry St. Hilaire, Galileo, Esculapius, Columbus, 
Cuvier, Agassiz, Humboldt, Huxley, Buffon, Hippocrates, Darwin 
and Linneus. 
Departmental Libraries have been established in several de- 
partments of the Museum for working use by Curators. 
The Rules give information as to the privileges of the General 
Library: 
GENERAL RULES : 
1. The Library will be open every day during the hours the 
Museum is open to the public. 
2. The Library is entirely a library of reference. The books 
are to be used in the reading rooms and not taken from them 
under any circumstances, excepting by the Curators and Assist- 
ants for use in Departmental Libraries. 
3. Books may be obtained by filling out the application slip 
and presenting it at the desk. Before leaving the room the bor- 
rower will return the book or periodical to the desk. 
