360 Personal and Scientific Neivs. 
Evidences that the Mohawk river, at a very remote period, changed its 
channel of drainage. By A. S. Tiffany, 
The Cleveland Shale and its fossil fishes. By J. S. Newberry. 
Discovery of Sporocarps containing Protosalvinia huronensis in the 
Ohio shale. By Edward Orton. 
The recently discovered sources of oil and gas in Ohio, Indiana and 
Kentucky. By Edward Orton. 
A new gas well at Cleveland. By H. P. Cushing. 
Geology of Cleveland. By H. P. Cushing. 
The ancient channel of the Ohio at Cincinnati. By Jo3. F. James. 
Ivorydale well in ]Mill Creek valley. By Jos. F. James. 
Notes on the preglacial drainage of western Pennsylvania. By P. Max 
Fashay. 
I. Discovery of the ancient St. Lawrence river. 
II. Origin of the basins of the great lakes. 
III. Establishment and dismemberment of lake Warren. 
IV. Discovery of the outlet of the Huron-Michigan -Superior lake to 
lake Ontario by the Trent valley. 
V. Erie the' youngest of all the lakes. By J. W. Spencer. 
On the intensity of earthquakes with approximate calculations of the 
energy involved. By T. C. Mendenhall. 
On the trap dikes at Kennebaiikport, Maine. By J. F. Kemp. 
Some thoughts on eruptive rocks with special reference to those of Min- 
nesota. By N. H. Winchell. 
The distribution of the granites of the northwestern states, and their 
general lithologic characters. By 0. W. Hall. 
The geologic age of the crystalline rocks of Arkansas. By J, C. Bran- 
ner. 
The peridotites of Pike county, Arkansas. By J. C. Branner and R. N". 
Brackett. 
Some physiographic notes on north-eastern Minnesota. By C. W. Hall, 
The oil field of Colorado. By J. S. Newberry. 
Evidence that lake Cheyenne continued till the ice-age. By J. E. Todd. 
The discovery of fossil tracks in the Triassic of York county, Pennsyl- 
vania. By A. Wanner. 
Recent discovery of rock salt in Kansas. By R. Hay. 
On the occurrence of the forest -bed beneath intra-inorainic drift. By 
Frank Leverett. 
On a new method of constructing geologic maps. By J. T. B. Ives. 
The age and correlation of the Mesozoic rocks of the Sergipe-Alagoas 
basin of Brazil. By J. C. Branner. 
Probable derivation of the terrestrial spheroid from the rhombic dodec- 
ahedron. By R. Owen. 
Additional facts respecting the law governing the distribution in space 
of seismism. By R. Owen. 
The Cretaceous deposits of North America. By C. A. White. 
Chalk in the North American Cretaceous. By R. T. Hill. 
In Response to the Circular Call which was printed in the 
GrEOLOGisT (vol. i. p. 394,) the geologists of Sec. E. assembled 
on the day before the opening of the session and after full and 
earnest discussion appointed a committee to present a constitu- 
tion and by-laws for the organization of the American Geologi- 
cal Society. These were read and adopted on the following 
day. The committee of organization Avas directed to proceed 
with the steps required by the constitution for completing the 
organization, securing the necessary membership and calling the 
first meeting. This committee consists of Profs. A. Winchell, 
