— 218 — 



fossils, with .special reference to collections from Indiana, Tennessee. and 

 Georgia (with pl. Y— IX). — Thomas Dwight : Joints and mnscles of con- 

 tortionists. — Jcles Marcou : Reply to the questions of Mr. Selwyn on 

 Canadian geological Classification for Quebec. — W. M. Davis and J. W. 

 Wood Jr. : The geographie development of northern New Jersey (w. fig.) 



— G. F. Wright : Climatic condition of the glacial period. — Warren 

 Upham: The growth, cuimination , and departure of the quaternary ice- 

 sheets. — Frank Leverett : Changes of cliniate as indicated by inter- 

 glacial heds and attendant oxidation and leaching. — N. S. Shaler : Note 

 on glacial climate. — Warren Upham: Remarks on glacial cliniate. — 

 W. 0. Crosby : Remarks on oowider-clay in, the vicinity of Boston. — 

 S". H. ScTDDER : Remains of Coleoptera iu the interglacial clays of Scar- 

 boro 1 . Ontario. — F. W. Pütnam: Remarks on early man in America. — 

 F. Tückerman : On the gustatory organs of the Mammalia. — A. S. Packard: 

 The life-history of Drepana arcuata, with remarks on certain structural 

 features of the larva and on the supposed dimorphism of Drepana arcuata 

 and Dryopteris rosea ; — Hints on the evolution of the bristles, spines, 

 and tubercles of certain caterpillars, apparently resulting from a change 

 from low-feeding to arboreal habits ; illustrated by the life-histories of 

 notodontians (w. pl. III and IV, and figs. in text). — S. H. Scudder: 

 Physiognomy of the American tertiary Hemiptera. — N. S. Shaler: Note 

 on the value of saliferous deposits as evidence of former climatal con- 

 ditions. — Frank Leverett : Glacial studies bearing on the antiquity of 

 of man. — M. H. Saville: The Sanborn bowlder. 



10) Proceedings of the Academy of Natural Sciences of 

 Philadelphia, 8°. Philadelphia. [Jb. 1890. II. -362-.] 

 1890. Part II. April — September. — Lewis Woolman : Geology of 

 Artesian Wells at Atlantic City , N. J. (Concluded). — Benjamin Sharp : 

 Variations in Bulimus exilis; — Remarks on the exuviae of snakes. — 

 Charles R. Keyes : Synopsis of American Carbonic Calyptraeidae (PI. II). 



— Joseph Leidy : Hippotherinm and Rhinoceros from Florida ; — Masto- 

 don and Capybara of South Carolina. — H. A. Pilsbry : New East Indian 

 Land Shells. — John Ford : Description of a New Species of Helix. — 

 Lewis Woolman: Marine and Fresh-Water Diatoms and Sponge-spicules 

 from the Delaware River Clays of Philadelphia. — Angelo Heilprin : 

 Mexican Exploration. — Geo. A. Rex: Descriptions of three new species 

 of Myxomycetes, with notes on other Forms in Century XXV of Ellis & 

 Everhart's North American Fungi. — Arthur Erwin Brown : On a new 

 genus of Colubridae from Florida. — Witmer Stone: On Birds Collected 

 in Yucatan and Southern Mexico. — J. B. Ellis and B. J. Everhart : 

 New North American Fungi. — Angelo Heilprin : Barometric Observations 

 among the High Volcanoes of Mexico, with a consideration of the Culmi- 

 nating Point of the North American Continent. — Thomas Meehan : Con- 

 tributions to the Life-Histories of Plants. No. V. On the Anthers of Lappa 

 major. The Pollination of Crucianella stylosa. Note on Unisexuality in 

 Connection with the Order of Flowering Plants. On the varying Character 



