454 [ DECEMBER, 
During the past year, from January 1, to December 1, 1853, the following 
papers have been read before the Academy, referred to Committees, and upon 
their report, published in the Journal and Proceedings of the Academy. 
By John Cassin, three, to wit: 1. Description of a new species of the genus 
Scalops, from Oregon, in the collection of the United States Exploring Expe- 
dition. 2. Catalogue of the Hirundinide, in the collection of the Academy of 
Natural Sciences of Philadelphia, July 1, 1853. 3. Descriptions of new species 
of Hirundinide and Psittacide, specimens of which are in the Collection of the 
Academy of Natural Sciences of Philadelphia. 
By Mr. T. A. Conrad, three, to wit: 1. Synopsis of the North American 
Naiades. 2. On new species of Unio—published in the Journal. 3. Monograph 
of the genus Fulgur. 
By Frederick A. Genth, Ph. D., two, to wit: 1. Ona variety of gray Copper, 
perhaps a new mineral. 2. On Owenite, a new mineral. 
By Charles Girard, five, to wit: 1. Descriptions of new Nemertians and Pla- 
narians, from the coast of the Carolinas. 2. Observations upon the American 
species of the genus Esox. 3. Note upon a nest constructed by Catfishes. 
4. Descriptions of some new Fishes, from the river Zuni. . 5. List of Reptiles, 
collected in California by J. L. Le Conte, with descriptions of New Species. 
By the Rev. M. J. Berkeley, M. A., F.L.S., and Rev. M. A. Curtis.—Exotic 
Fungi, from the Schweinitz Herbarium, in the Academy of Natural Sciences of 
Philadelphia. 
By Spencer F. Baird and Charles Girard, four, to wit: 1. Descriptions of new 
species of Fishes, collected by Captains R. B. Marcy and George B. McClellan, 
in Arkansas. 2. Descriptions of new species of Fishes, collected by Mr. John 
W. Clarke, in the United States and Mexican boundary survey, under Lieut. 
Col. James D. Graham. 3. Descriptions of new species of Reptiles, col- 
lected by the United States Exploring Expedition. 4. Researches upon Ne= 
mertians and Planarians. 
By Francis N. Green, M. D.—Chemical investigation of remains of Fossil 
Mammalia. 
By S. S. Haldeman.—Descriptions of some new species of Insects, with 
observations on described species. 
By Edward Hallowell, M. D.—On some new Reptiles from California. 
By Adolphus L. Heermann, M. D.—Catalogue of the Oological Collection in 
the Academy of Natural Sciences, Philadelphia. “ 
By Pliny R. Hoy, M. D.—Three, to wit: Notes onthe Ornithology of Wis- 
consin, three papers. 
By Prof. W. G. Harvey and Prof. J. W. Bailey.—New species of Diatomacee 
collected by the United States Exploring Expedition. 
By Isaac Lea.—1. Notice of the Mya nodulosa, Wood. 2. On the Castalia sul- 
eata, Krauss. 
By Major John Le Conte, F.L.S.—1. Description of a new species of Pacane 
Nut. 2. Deseriptions of three new species of Arvicola, with remarks upon 
other North American Rodents. 3. Observations on Crotalus horridus and 
C. durissus. 
By John L. Le Conte, M. D., seven, to wit: 1. Descriptions of twenty new 
species of Coleoptera, inhabiting the United States. 2. Synopsis of the Sil- 
phales of America, North of Mexico. 3. Synopsis of the Scaphidilia of the 
United States. 4. Synopsis of the species of the Histeroid genus Abrzus, in- 
habiting the United States. 5. Synopsis of the Meloides of the United States. 
6. Synopsis of the Endomochyde of the United States. 7. Synopsis of the 
Atopidz, Rhipiceride and Cyphonide of the United States. 
By Lieut. Maury, U. 8S. N.—Observations on Atmospheric Pressure. 
By Dr. S. Weir Mitchell.—On the influence of certain states of Respiration on 
the Pulse. 
By M. C. Read.—Notes on the birds of Northern Ohio. 
By S. W. Woodhouse, M. D.—1. Description of a new species of pouched 
Rat, of the genus Dipodomys, Gray. 2. Description of a new species of Mouse, 
of the genus Hesperomys. In all 44. 
