COTSTTETSTTS. 



FAGS. 



Randolph, N. A. On the Behavior of Petrolatum in the Digestive Tract, 281 



Leidy, Jos., M. D. Urnatella gracilis, 282 



Strecker, Herman. Description of New Species of North American 



Heterocera 283 



Gray, Asa. Notes on the Movements of the Androecium in Sunflowers, . 287 

 SCRIBNER, F. Lamson. Observations on the Genus Cinna, with Description 



of a New Species (Plate VII), 289 



Ford, John. Embryology of Fulgur, etc., 292 



Potts, Edw. An unfamiliar Rhizopod, 292 



McCooK, Henry C, D. D. Note on the Intelligence of a Cricket parasitised 



by a Gordius, 293 



McCooK, Henry C, D. D. A New Parasitic Insect upon Spider Eggs, . 294 

 Meehan, Thos. On Derivation in Pinus edulis and Pinus monophylla, . 295 

 Meehan, Thos. Immediate Influence of Pollen on Fruit, .... 29^ 



Brinton, Daniel G., M. D. A Glacial Pebble, 299 



Sharp, Benjamin, M. D. Homologies of the Vertebrate Crystalline Lens, 300 

 FoRDiCE, Morton W. A Review of the American Species of Stromateidae, 311 

 Heilprin, Angelo. On a Remarkable Exposure of Columnar Trap near 



Orange, N. J. (Plate VIII), 318 



Heilprin, Angelo. Notes on Some New Foraminifera from the Nummu- 



litic Formation of Florida, 321 



Repoit of the Recording Secretary, 323 



Report of the Corresponding Secretary, . . . . . . . 326 



Report of the Librarian, 328 



Report of the Curators, 330 



Summary of the Report of the Treasurer, 333 



Report of the Curator of the Wm. 6. Vaux Collections, .... 336 

 Report of Biological and Microscopical Section, ...... 338 



Report of the Conchological Section, . . . , 339 



Report of the Entomological Section, . . . . . . . . 341 



Report of the Botanical Section, 342 



Report of the Miueralogical and Geological Section, 345 



Report of the Professor of Invertebrate Palaeontology 345 



Report of the Professor of Mineralogy, 346 



Report of the Professor of Invertebrate Zoology, 347 



Report of the Professor of Ethnology and Archaeology, .... 348 



Officers for 1885, 349 



Elections during 1884, 349 



Additions to the Museum, 351 



Additiont- to the Library, 356 



Index to Genera, etc., 385 



General Index, 393 



'ILDARI'S PRINTINO HOUSE, T>4 li 7ie 9ANS0M ST., PHILAOII.PHM. 



