250 [December, 



in the States of Nueva Leon, Tamaulipas and Ccahuila, Mexico, with descriptions 

 of new species. 



By James D. Dana. Catalogue and descriptions of Crustacea, collected in 

 California by Dr. John L. Le Conte. 



By J. W. Dawson. On Fossil Coniferous Wood from Prince Edward's Island. 



By Wm. Dudley. Description of a species of Crane found in Wisconsin, pre- 

 sumed to be new. 



By Elias Durand and Theodore C. Hilgard, M.D. PlantaeHeermannianae Cali- 

 fornicre ; Descriptions of new Plants collected in South California by Dr. A. L. 

 Heermann, Naturalist attached to the Survey of the Pacific Railroad route, under 

 Lieut. R. S. Williamson, U. S. Army, with remarks on other plants heretofore 

 described, belonging to the same collection. Published in the Journal. 



By John Evans, M.D., and B. F. Shumard, M.D., three, to wit : 1. Descrip- 

 tions of new Fossil species from the Cretaceous Formation of Sage Creek, Ne- 

 braska. 2. Additions to a former Paper, containing descriptions of new fossil 

 species from Nebraska. 3. Descriptions of new fossil species from the fresh 

 water Tertiarv formation of Nebraska. 



By W. P. Gibbons, M.D., two, to wit : 1. Descriptions of four new species of 

 Viviparous Fishes from Sacramento River and the Bay of San Francisco ; read 

 before the California Academy of Natural Sciences, Monday, May 15th, 1854. 

 2. Descriptions of new species of Viviparous marine and fresh water Fishes, from 

 the Bay of San Francisco and from the River and Lagoons of the Sacramento ; 

 read before the California Academy of Natural Sciences, January 9th, 1854. 



By Charles Girard, nine, to wit . 1. On a new Entomostracan, of the family 

 Limnadidas, inhabitiag the western waters. 2. Notice of a new species of Sal- 

 monidse from the north-eastern part of the United States. 3. A list of the North 

 American Bufonids, with diagnoses of new species. 4. Descriptions of new 

 Fishes collected by Dr. A. L. Heermann, Naturalist attached to the Survey of 

 the Pacific Railroad route, under Lieut. R. S. Williamson, U. S. Army. 5. Con- 

 tinuation of a former Paper, describing Fishes collected by Dr. A. L. Heermann. 

 6. Enumeration of the species of Marine Fishes collected at San Francisco, Cal., 

 by Dr. C. B. R. Kennerly, Naturalist attached to the Survey of the Pacific Rail- 

 road route, under Lieut. A. W. Whipple, U. S. Army. 7. Observations on a col- 

 lection of Fishes made on the Pacific coast of the United States, by Lieut. W. P. 

 Trowbridge, U. S. Army, for the Museum of the Smithsonian Institution. 8. 

 Characteristics of some Cartilaginous Fishes of the Pacific coast of North Ame- 

 rica. 9. Abstract of a Report of Lieut. James M. Gilliss, U. S. Navy, upon the 

 Fishes collected during the U.S. Naval Astronomical Expedition to Chili. 



By Edward Hallowell, M.D., six, to wit : 1. Descriptions of New Reptiles 

 from California. 2. On a new genus and species of Serpents from Honduras, 

 presumed to be new. 3. Remarks on the Geographical Distribution of Reptiles, 

 with descriptions of several species supposed to be new, and corrections of former 

 Papers. 4. Contributions to South American Herpetology. 5. Notices of new 

 Reptiles from Texas. 6. New Reptiles from the coast of Guinea. 



By A. L. Heermann, M.D. Additions to North American Ornithology. 



By J. E. Holbrook, M.D. Descriptions of Fishes of Florida. Published in the 

 Journal. 



By Joseph Jones. Abstract of Experiments upon the Physical Influences ex- 

 erted by living organic, and inorganic Membranes upon Chemical Substances 

 passing through them by Endosmose. 



By Alfred T. King, M.D., three, to wit: 1. On the Ancient Alluvium of the 

 Ohio River and its tributaries. 2. Descriptions of fossil Trees in the Coal Rocks 

 near Greensburg, Westmoreland Co., Pa. 3. Description of fossil Fruit found 

 in the Carboniferous Rocks of Beaver Co. Pa. 



By Isaac Lea. Rectification of Mr. T. A. Conrad's " Synopsis of the family of 

 Naiades of North America," published in the Proceedings of the Academy of 

 Natural Sciences of Philadelphia, February, 1853. 



By John Le Conte, F.L.S., three, to wit: 1. Notice of American Animals for- 



