1892.] 



NATURAL SCIENCES OF PHILADELPHIA. 



529 



fers; A mode of variation in Slellaria 

 media; On the sexes of the Holly; 

 On the stamens of Ranunculus abor- 

 tivus; On the character of the stam- 

 ens in Ornithogalum umbellatum ; 

 Note on Barbarea in connection with 

 dichogamy, 160. Contributions to 

 the life-histories of plants, No. 8: 

 Euphrasia officinalis; Notes on Gaura 

 and CEnothera ; The carpellary struc- 

 ture of Nymphaea; On the sexual 

 characters of Rhus ; Rhus chamae- 

 morus; Dalibarda repens ; On some 

 morphological distinctions in the 

 genera of Ericaceae ; Vitality of 

 Seeds, Lysimachia atropurpurea ; 

 Campanula rotundifolia; Cornus 

 Canadensis; Aralia hispida ; Luzula 

 campestris ; Qakile Americana; Hy- 

 pericum ellipticum; Trifolium hy- 

 bridium ; Lathyrus maritimus : Loni- 

 cera ccerulea ; Raphanus sativus , On 

 the nature and verrucse in some Con- 

 volvulacere; Polygonum cilinode; 

 Aster tatarica, 350, 366. Notes on 

 Monaida fistulosa, 449. Report of 

 Botanical Section, 498. 



Miller, Andrew H., announcement of 

 death of, 127. 



Mineralogical and Geological Section, 

 report of, 500- 



Nassau, Rev. R. H. Notes on the 

 Gorilla (no abstract), 10. 



Nolan, Edw. J., M. D. Report of 

 Recording Secretary, 485. Report 

 of Librarian, 489. 



Officers, Councillors and Finance Com- 

 mittee for 1893, 608. 



Ornithological Section, report of, 503. 



Parker, Andrew J.. M. D., announce- 

 ment of death of, 154. 



Peary, R. E. Greenland Explorations, 

 290. Report of the operations of the 

 North Greenland Expedition of 1891- 

 1892, 842. 



Peary Relief Expedition, authorization 

 of, 10. 



Pilsbry, H. A. Anatomy of West 

 Indian Helices, 128. New and un- 

 figured Unionidae, 131. A new 

 species of Pachychilus, 153. On the 

 anatomy of Sagda, Cysticopis, ./Egis- 

 ta and Dentellaria, 1.55, 213. Notes 

 on a collection of shells from the 

 State of Tobasco, Mexico, 324, 338. 

 A new Marine Gasteropod from 

 New Jersey, 328. Preliminary out- 

 line of a new classification of the 



35 



Helices, 387. Report of the Concho- 

 logical Section, 495. 



Professor of Invertebrate Paleontology, 

 report of, 500. 



Professor of Lower Invertebrata, report 

 of, 501. 



Rand, Theodore D. Geology of the 

 Isle of Shoals, 324. The supposed 

 South Chester Valley Hill Fault, 445. 



Rand, Theodore D., William W. 

 Jefferis and J. T. M. Cardeza, M. D. 

 Mineral localities of Philadelphia and 

 vicinity, 174. Report of Mineralogi- 

 cal and Geological Section, 500. 



Recording Secretary, report of, 485. 



Redfield, John H. Report of Botani- 

 cal Section, 498. 



Rex, Geo. A., M. D. Diachoea 

 Thomasii, a new species of Myxo- 

 mycetes, 329. 



Report of the Biological and Micro- 

 scopical Seciion, 494. 



Report of Botanical Section, 498. 



Report of the Conchological Section, 

 495. 



Report of Corresponding Secretary, 488. 



Report of the Curator of the Wm. S. 

 Vaux Collections, 502. 



Report of Curators, 491. 



Report of the Entomological Section,. 

 497. 



Report of the Librarian, 489. 



Report of the Mineralogical and Geo- 

 logical Section. 500- 



Report of the Ornithological Section^ 

 503. 



Report of Professor of Invertebrate 

 Paleontology, 500. 



Report of Professor of Lower Inverte- 

 brata, 501. 



Report of Recording Secretary, 485. 



Report on the Jessup Fund, 



Rhoads, Samuel N. The birds of South- 

 eastern Texas and Southern Arizona 

 observed during May, June and July, 



1891, 98. The Birds of British 

 Columbia and Washington observed 

 during the spring and summer of 



1892, 448. 



Ruschenberger, W. S. W., M. D. Re- 

 port of Curators, 491. Report on the 

 Jessup Fund, 504. 



Ryder, John A. On the mechanical 

 genesis of the scales of fishes, 172, 

 219. Diffuse pigmentation of the 

 epidermis of the oyster due to pro- 

 longed exposure to the light : regen- 

 eration of shell and loss of adductor 



