REVIEWS 641 



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 15, 1901, the approximate locations of the 

 mines being indicated by numbered black dots, and the corresponding 

 names and numbers printed on the margin of the map by counties. 

 The map shows also oil and gas developments of the state, and should 

 prove of much use to those interested in these subjects. Copies may 

 be purchased (50 cents) from the West Virginia Geological Survey, 

 Box 448, Morgantown, W. Va. 



