Correspondence. 329 
January lOth, 1899, by the West Virginia Geological Survey, has recent- 
ly been revised, new features added and republished under date of 
August 1st, 1901. 
The map shows in separate colors the three great coal formations 
of West Virginia, viz. : the New River of Pocahontas, the lowest, the 
Allegheny-Kanawha series in the middle, and the Monongahela or 
Pittsburg (Connellsville) at the top. Two features not shown on the 
original map have been added in this edition, viz. : the prominent 
anticlinal lines, and the locations and names of every coal mine in the 
state shipping coal by rail or river, up to July 15th, 1901, the ap- 
proximate locations of the mines being indicated by numbered black 
dots, and the corresponding names and numbers printed on the mar- 
gin of the map by counties. 
The State Geological Commission has placed this map on sale at 
the office of the survey at the price of 50 cents per copy from which 
there is no discount. 
The map shows the coal, oil and gas developments of the state at a 
glance, and should prove of much use to every one interested in these 
subjects, even though the topographic base of the map is unavoidably 
very inaccurate, and must remain so until the topographic map now 
being constructed by the cooperation of the State and United States 
Geological survey shall have been completed five to six years hence. 
Those who desire it should fill out the accompanying blank and en- 
close it with 50 cents to the office of the West Virginia Geological Sur- 
vey, Box 448, Morgantown, W. Va. 
I. C. White. 
September 20th, 1501. State Geologist. 
New York Academy of Sciences. The first meeting of the Sec- 
tion of Geology and Mineralogy of the New York Academy of Sci- 
ences was held on October 21. In calling the meeting to order the 
chairman spoke of the loss to the Academy and to science occasioned 
by the death of Dr. T. G. White, secretary of the Section, and of 
professor Joseph LeConte, corresponding member of the Academy. A 
committee consisting of professors J. J. Stevenson and J. F. Kemp, 
was appointed to draw up suitable minutes in reference to Dr. 
White and professor LeConte. 
Dr. E. O. Hovey, of the American Museum of Natural History, 
was then elected secretary of the Section. 
'ihe following program was then offered: 
A. W. Grabau spoke on Recent Contributions to the Problem of 
Niagara. He said that Davis has .-hown that the topography of the 
Niagara region conforms to the type generally found in ancient coastal 
plains,, the original features of which have been more or less modified 
by subsequent warpings, and by glacial erosion and deposition. 
The Niagara escarpment is the inface of the Niagara cuesta. trace- 
able through the Indian peninsula and Grand Manitoulin island. The 
Ontario lowland is continued in the Georgian Bay lowland. A second 
cuesta — the Onondaga— has its inface slightly developed north of Buf- 
falo, but becomes prominent in the l.ake Huron vallov, where its in- 
