300 Scientific Intelligence. 



H. S. Williams : The use of fossils in determining the age of geologic terranes. 



J. E. Todd : The terraces of Missouri. — Extra morainic strias in the Missouri 

 valley. — Evidence that Lake Cheyenne continued till the ice age. 



G. F. Weight: Boundary of the glaciated area in Dakota. 



A. S. Tiffany: Evidences that the Mohawk river, at a very remote period, 

 changed its channel of drainage. 



E. H. Kxowltox : The fossil wood and lignites of the Potomac formation. 



L. E. Ward : The jDaleontological history of the genus Platonus. — Remarks on 

 an undescribed vegetable organism from the Fort Union group, Montana. 



C. A. White : The Cretaceous deposits of North America. 



R. T. Hill: The occurrence of chalk in the North American Cretaceous. 



J. S. Newberry: The Cleveland Shale and its fossil fishes. — The oil field of 

 Colorado. 



Edward Ortox : Discovery of sporocarps containing protosalvinia huroniensis 

 in the Ohio shale. — The recently discovered sources of oil and gas in Ohio, In- 

 diana and Kentucky. 



H. P. Cushing : A new gas well at Cleveland. — Geology of Cleveland. 



J. F. James : The ancient channel of the Ohio at Cincinnati. — Ivorydale well 

 in Mill Creek valley. 



P. Max Fashay : Notes on the preglacial drainage of Western Pennsylvania. 



J. W. Spencer: Discovery of the ancient St. Lawrence River. — Origin of the 

 basins of the great lakes. — Establishment and dismemberment of Lake Warren. — 

 Discovery of the outlet of the Huron-Michigan-Superior lakes to Lake Ontario 

 by the Trent valley. — Erie the youngest of all the lakes. 



T. C. Mexdexhall: On the intensity of earthquakes with approximate calcula- 

 tions of the energy involved. 



J. F. Kemp: On the trap dikes of Kennebunkport, Maine. 



N. H. Wixchell : Some thoughts on eruptive rocks with special reference to 

 those of Minnesota. 



C. W. Hall: The distribution of the graniies of the Northwestern States, and 

 their general lithologic characters. — Some physiographic notes on Northeastern 

 Minnesota. 



J. C. Braxxer: The geologic age of the crystalline rocks of Arkansas. — The 

 age and correlation of the Mesozoic rocks of the Sergipe-Alagoas basiu of Brazil. 



J. C. Braxner and R. N. Brackett: The Peridotites of Pike County, Arkansas. 



A. Waxxer: The discovery of fossil tracks in the Triassic of York County, 

 Penn. 



R. Hay : Recent discovery of rock salt in Kansas. 



Fraxk Leverett : On the occurrence of the forest bed beneath intra-morainic 

 drift. 



J. T. B. Ives : On a new method of constructing geologic maps. 



R. Owen : Probable derivation of the terrestrial spheroid from the rhombic 

 dodecahedron. — Additional facts respecting the law governing the distribution in 

 space of seismism. 



Section F. — Biology. 



N. S. Brittox : A plea for uniformity in biological nomenclature. 



Thos. Meehax : A study of the Hydrangea as to the objects of cross-fertiliza- 

 tion. — Some new facts in the life history of Yucca and the Yucca moth. — On the 

 cause and significance of dichogamy in flowers. — Adaptation in the honeysuckle 

 and insect visitors. 



C. L. Sturtevaxt : A phase of evolution. 



Jos. Schrexk : Notes on the inflorescence of Callitriche. 



A. N. Prextiss : Hygroscopic movements in the cone scales of Abietineaj. 



J. B. Smith : Sexual characters of the species of the Coleopterous genus Lach- 

 nosterna. 



0. P. Hay: On the structure of the skull of the larva of Amphiuma. — A sup- 

 posed new species of Branchipus from Indiana. 



W. Edgar Taylor: Color variations of Nebraska flying squirrels. 



T. B. Stowell: The muscles of the soft palate in the domestic cat. 



