1903.] 
NATURAL SCIENCES OF PHILADELPHIA. 
807 
Geological Survey of Minnesota.. 1 
Philadelphia Commercial Mu- 
seums 1 
Geological Survey of Michigan .... 1 
Trustees of the Indian Museum... 1 
Geological Survey of Iowa 1 
Stewardson Brown 1 
Department of Geology and Nat- 
ural History, Indiana 1 
Thomas Biddle, M.D 1 
Joseph Willcox 1 
They have been classified, catalogued and arranged in the Library 
under the following heads : 
Journals 5,057 
Geology 469 
Botany 246 
General Natural History 161 
Agriculture 93 
Entomology 73 
Anatomy and Physiology 69 
Anthropology 66 
Voyages and Travels 56 
Ornithology 49 
Geography 45 
Mineralogy 44 
Mammalogy 
43 
Bibliography 
42 
Conchology 
41 
Ichthyology 
39 
Helminthology 
34 
Physical Sciences 
24 
Encyclopedias, etc 
17 
Chemistry 
16 
Herpetology 
11 
Mathematics 
10 
Medicine 
8 
Unclassified 
24 
The collection of lantern-slides, which is becoming year by year of 
more importance as illustrations for the courses of lectures delivered 
under the auspices of the Academy, has been increased by the addition 
of 262 views, the entire collection now numbering 1,243. A new 
cabinet to hold 1,000 slides has been provided and a card catalogue 
has been prepared by Dr. Benjamin Sharp. The additions of the year 
have been derived from the following sources : Charles Schaeffer, 
M.D., 25; Benjamin Sharp, M.D., 19; Henry Skinner, M.D., 7; pur- 
chased, 211. 
A large collection of maps which had accumulated since the founding 
of the Academy and which was practically inaccessible, have been 
cleaned, trimmed and backed with linen; 2,128 pieces, forming up- 
ward of 9,000 square feet, have thus been treated. A case of drawers 
has been provided for them and they have been roughly classified 
and placed therein, to be more carefully arranged as soon as time can 
be found for the work. 
An important part of the journals and periodicals reported has been 
received in answer to applications for deficiencies written in the course 
of preparing sets for the binding. Among the more interesting of such 
acquisitions is a complete set of the Memoirs of the Royal Academy 
of the Lincei of Rome, efforts to secure which had been made inter- 
mittently since 1883. 
