586 PROCEEDINGS OF THE ACADEMY OF [DeC, 



Three hundred and thirty-nine lantern sHdes have been added to the 

 collection as a loan from the Ludwick Institute. These are dis- 

 tinguished in the catalogue by blue cards. 



The intelligence and reliability of my assistant, William J. Fox, in the 

 discharge of his duties, both in the Librarj- and in connection with the 

 publications of the Academy, are again gladly acknowledged. 



Edward J. Nolan, 



Librarian. 



REPORT OF THE CURATORS. 



The collections in the care of the Curators are in excellent condition, 

 while much progress has been made during the year in their study and 

 classification. 



Early in the year work was begun upon the new concrete and steel 

 roof for the Library building, for which the Academy received an appro- 

 priation of S20,000 from the State of Pennsylvania, and by the begin- 

 ning of the autumn it had been completed. The new roof is a needed 

 improvement, being thoroughly waterproof and fireproof, while it 

 admits an abundance of light to the Museum galleries. 



This work necessitated the temporary closing of the old ^luseum to 

 the public and the removal of all the collections from the upper gallery, 

 while the cases on the lower floor had to be boarded up for their better 

 protection. The rearrangement of the collections is now in progress 

 and will be pushed rapidly during the coming year. 



Two thousand and sixteen cubic feet of exhibition cases uniform 

 with those previously installed have been ordered for birds, inver- 

 tebrate fossils and the McCook collection of insect architecture. 



A number of air-tight metal storage cases have been provided for the 

 bird and mammal skins and for the Herbarium. 



Mr. Clarence B. Moore has continued his exploration of the Indian 

 mounds of the Gulf States and has still further enriched his unrivalled 

 collection. 



Through the liberality of Mrs. Charles Schaeffer, Mr. Stewardson 

 Brown was enabled to spend two months collecting botanical speci- 

 mens in the Canadian Rockies, where he obtained about 4,000 plants 

 representing 700 species. 



Dr. Henry Skinner visited Idaho in the interest of the Academy for 



