2 [January, 



Dr, Leidy exhibited the heart of a dog, in which the right auricle, 

 right ventricle, and the pulmonary artery and its branches, were literally 

 stuffed with worms. Minute worms have long been known circulating 

 with the blood, and termed Ilasmatozoa. About five years since, 

 Dr. L. described in vol. 5 of the Proceedings, the worm exhibited 

 this evening, as Filaria Canis cordis. The males measure five inches 

 in length, the females ten inches. 



Two hearts were brought to Dr. L. by Mr. Jos. Jones, of Georgia ; one, 

 that of a pointer, had in it five worms ) the other, that of a cur, was the 

 one exhibited. Tt is probable that both venas cavte were also filled, as 

 the portions of those vessels that remained, were blocked up. The 

 animals did not die from the presence of the entozoa, but were killed in 

 the course of some experiments. The cur was emaciated and voracious, 

 restless when awake, and disturbed in its sleep. 



January 20 ^7i. 



Vice President Bridges in the Chair. 



The Report of the Corresponding Secretary, for Dec, '55 and Jan., 

 '56, was read. 



The Recording Secretary read his Annual Report as follows : 



REPORT OF THE RECORDING SECRETARY FOR 1855. 



During the year ending 30th November, 1855, there have been elected to the 

 Academy, twenty-three Members and ten Corre.spondents. One Member has re- 

 signed. 



There have been no deaths among the Members during that period. 



The following papers have been read and ordered to be published in the Pro- 

 ceedings or Journal of the Academy. 



By Samuel Ashmead, Catalogue of Marine Alg, from Beesley's Point, New 

 .Jersey, with some remarks. 



By Spencer F. Baird, two, to wit : Characteristics of some new species of 

 North American Blamnialia, collected by the United States and Mexican Bounda- 

 ry Survey, under Major W. H. Emory, U. S. Army, Commissioner, Parti ; Cha- 

 racteristics of some new species of North American Mammalia, collected chiefly 

 during the United States Surveys of a Railroad route to the Pacific, Part 1. 



By Wm. P. Blake. Notice of remarkable Strata of the Remains of Infusoria 

 and Polythalamia in the Tertiary Formations of Monterey, California. 



By John Cassin, four, to wit : A list of Pigeons of the Genus Carpophaga 

 Swainson, in the Collection of the Academy of Natural Sciences of Philadelphia, 

 and of the United States Exploring Expedition, Washington, D. C, with descrip- 

 tions of new and little known species ; Notes on the North American Falconidae, 

 with descriptions of new species ; Descriptions of new species f Birds from Western 

 .\frica, in the Collection of the Academy of Natural Sciences of Philadelphia ; 

 Description of a new species of Parrot, Brotogeris aurifrons, published in the 

 Journal. 



By T. A. Conrad, six, to wit: Observations on the Eocene Deposits of Jackson, 

 Miss., with descriptions of thirty-four new species of Shells and Corals ; Descrip- 

 tions of three new Cretaceous and one Tertiary Bivalve ; Description of three 

 new species of Unio ; Descriptions of seventeen new Cretaceous and Tertiary 

 Fossils ; Descriptions of six new species of Cretaceous Shells from Texas, in the 

 Collection of Major Emory ; Description of a new species of Paludina. 



By Julian Deby. Remarks on the Cryptogaraic Flora of the State of Georgia. 

 Published in the Journal. 



