1902.] NATURAL SCIENCES OF PHILADELPHIA. 803 



Five new plate-glass and mahogany cases have been placed in 

 the Museum during the year, one large case for birds and two for 

 mammals, while Mr. Clarence B. Mooi'e has added two for the 

 accommodation of the archpeological material obtained by him in 

 northwestern Florida. A number of moth-proof storage cases of 

 various kinds have been provided for the rapidly increasing study 

 series of birds, mammals and insects. 



The Museum staff was further increased at the beginning of the 

 year by securing the services of Dr. J. Percy Moore and Mr. C. 

 W. Johnson as assistants to the Curators. Dr. Moore has taken 

 charge of the Helmiuthological collection and has identified and 

 catalogued all of the material in the Museum. During the sum- 

 mer, when on leave of absence at Woods Hole, he made valuable 

 collections in this department for the Academy. 



Mr. Johnson, besides the care of the Isaac Lea Collection of 

 Eocene Mollusca, Avhich he has continued as heretofore, has been 

 able to rearrange, identify and label the entire series of American 

 Cretaceous invertebrates. The types identified number upward of 

 400. The additions to the Lea collection for the year number 730 

 trays. 



In the care and arrangement of the various study collections 

 important work has been accomplished, the details of which will be 

 found in the reports of the several sections- -that on the Conchologi- 

 cal collections by Dr. Pilsbry ; the Ornithological by ]\[r. Stone ; 

 the Botanical by Mr. Stewardson Brown, and the Entomological 

 by Dr. Skinner. 



In the rearrangement of the Museum the most notable work has 

 been the installation of nearly one-half of the mounted birds in the 

 cases provided for them in the new building. The specimens have 

 been carefully examined by the taxidermist and labeled and 

 arranged by Mr, Stone. Almost all the water-birds and the 

 greater part of the Gallinacese have been transferred, and the floor 

 will be ready for opening in the spring. 



Rearrangement of the mounted mammals has been made neces- 

 sary by the addition of new cases, and the moose and other exposed 

 specimens have been placed under glass. Several attractive 

 mounts have been prepared during the year, notably the groups of 

 Siamangs collected and presented by Mr. Alfred C. Harrison, Jr., 

 and Dr. H. M. Hiller. 



