CONTENTS 



Dall, William H. The Calaveras Skull 2 



Stone, Wither. A Study of the Type Specimens of Birds in the Col- 

 lection of the Academy of Natural Sciences of Philadelphia, with 

 a Brief History of the Collection 5 



Fox, William J. Synopsis of the United States Species of the Hymen - 

 opterous Genus Centris Fabr., with Description of a New Species 

 from Trinidad ' 68 



Johnson, Charles W. New and Interesting Species in the " Isaac Lea 



Collection of Eocene MoUusca" (Plates I and II) .... 71 



Meehan, Thomas. Contributions to the Life-History of Plants, No. 

 XIII: Sex in Flowers — Corylus rostrata; Clethra alnifolia, in 

 Relation to its Morphology ; Sanicula, a Biological Study ; Rosa 

 rugosa, in Connection with the Evolution of Form ; Viola, in 

 Relation to Pollinization and Fecundation ; Isnardia palustris, 

 Additional Note on its Stipular Glands ; Parthenogenesis; Lacluca 

 scariola, in Relation to Variation and the Vertical Position of its 

 Leaves ; The Stigma of Asclepias ; PhyUotaxis, in Connection with 

 Chenopodiacese and Polygonaceee ; The Influence of Fungi on the 

 Forms and Characters of Plants ; The Movements of Plants ; 

 Eccentricity of the Annual Wood Circles in Rhus toxicodendron ; 

 Morphology of the Grape 84 



Fowler, Henry W. A List of Fishes collected at Port Antonio, 



Jamaica 118 



Vanatta, Edward G. A New American Land Shell .... 120 



Vaux, George and William S., Jr. Some Observations on the Ille- 

 cellewaet and Asulkan Glaciers of British Columbia (Plates III, 

 IV, Vand VI) 121 



Moore, J. Percy. A Snow-inhabiting Enchytrseid (Mesenchytraeus 

 solifugus Emery), collected by Mr. Henry G. Bryant on the Malas- 

 pina Glacier, Alaska (Plate VII). 125 



Bush, Katharine Jeannette. Descriptions of New Species of Turbo- 

 nilla of the Western Atlantic Fauna, with Notes on those pre- 

 viously Known (Plate VIII) 145 



Fowler, Henry W. Notes on a Small Collection of Chinese Fishes . 179 



Stone, Wither. A Small Collection of Reptiles and Batrachians from 



Eastei-n Mongolia 183 



PiLSBRY, Henry A. New and Little-known Species of Pristiloma 



(Plate IX) 185 



PiLSBRY, H. a., and T. D. A. Cockerell. Ashmunella, a new Genus 



of Helices 188 



Fox, William J. Contributions to a Knowledge of the Hymenoptera 

 of Brazil, No. 6: A Collection from Rio Grande do Sul and Sao 

 Paulo : 19-'> 



Oberholser, Harry C. Some LTntenable Names in Ornithology . . 201 



