CONTENTS. 



Cope, Edw. D. Description of a Lower Jaw of Tetrabelodon Shepardii. 



Meehan, Wm. E. A Contribution to the Flora of Greenland 



Woolman, Lewis. Cretaceous Ammonites and other Fossils near Moorestown, N. J. 

 Their stratigraphic position shown by an Artes-ian Well Section at Maple Shade, 

 N. J. Incidental reference to Water Horizons. ...... 



Chapman, Henry C. , M. D. Observations on the Japanese Salamander, Crypto- 

 branchus maximus (Schlegel) (Plates V, VI and VII). ..... 



Sterki, V. Observations on Vallonia (Plate VIII) 



Allen, Harrison, M. D. Note on the Mechanism of the Act of the Expulsion of 

 Secretion from the Anal Sac in Mephitis. ....... 



Stfecker, Herman. Descriptions of two new species of North American Bombycidae. 



Tall, Wm. H. The Phylogeny of the Docoglossa. ...... 



Meehan, Thomas. Contributions to the Life Histories of Plants, No. IX. Populus 

 tremuloides — A Monoecious Case. Extra-Axillary Branching in Mertensia mari- 

 tima. Dichotomous Branching in Spergularia media. Missing Verticil in Glaux 

 maritima. The Relation between Rhythmic Growth and Variety in Citrus Fruits. 

 Morphology of the Stipule in Comarum palustre. Fertilization of Malva rotundi- 

 folia. The Peduncle in Streptopus amplexifolius. The Anthesis of Brunella vul- 

 garis. Branching of Euphorbia hypericifolia and E. maculata. Dimorphic Forms 

 of Lythrum Salicaria. Structure of Florets in Bidens bipinnata. Rhythmic Growth 

 in Flowers in Heliopsis lrevis. Floccose Leaves of Antennaria plantaginifolia. 

 Endurance of Portulaca oleracea. Early Fertilization of Scutellaria galericulata. 

 Fertilization of Trifolium pratense. ......... 



Ford, John. Remarks on a new species of Cypraea 



Tarr, Ralph S. Notes on the Physical Geography of Texas 



Chapman, Henry C, M. D., and Albert P. Brubaker, M. D. The Radius of 

 Curvatures of the Cornea. . . . . . . 



202 

 205 



219 



227 

 234 



280 

 282 

 285 



289 

 310 

 313 



349 



