106 Scientific Intelligence. 



2. West Virginia Geological Survey ; I. C. White, State 

 Geologist. Doddridge and Harrison Counties ; by Ray V. 

 Hennen, Assistant Geologist. Pp. xvi, 712; 25 plates, 5 figures, 

 3 maps in separate cover. Morgantown, 1912. — The excellent 

 series of county reports issued by the Geological Survey of West 

 Virginia has now been increased by a volume devoted to Dod- 

 dridge and Harrison counties. These counties lie in the north- 

 central portion of the State and embrace an area of nearly 740 

 square miles. In introducing the work of Mr. Hennen, the author 

 of this volume, Professor White calls attention to the fact that in 

 an earlier report Mr. Hennen's suggestions, based upon carefully 

 made structural maps, have already led to the discovery of a large 

 new oil pool; and lie adds that similar discoveries of oil and gas 

 pools are likely to follow from the work here detailed. 



" As implied in this statement, the chief permanent economic 

 interests of the two counties lie in the oil wells, of which we have 

 given the records, for example, of 240 wells in Doddridge County 

 and 435 in Harrison County. In both cases the wells noted have 

 been selected from a much larger number drilled, on account of 

 their wide distribution and some special features associated with 

 them. The coal production of this area is also an important 

 matter, the amount mined in Harrison County in 1910 being 

 3,700,000 gross tons. This coal is confined to the Redstone and 

 Pittsburgh beds, which though deeply buried in Doddridge and 

 western Harrison, are brought within easy reach in the central 

 and eastern portions of the latter county by the Wolf Summit and 

 ChestnutRidge anticlines. Another important industry in Harrison 

 County is that of the glass companies which have grown rapidly 

 in recent years, and taken together with the oil, gas, and coal pro- 

 duction, and the farming interests, makes this the second richest 

 county in the State. 



This carefully written report by Mr. Hennen, aided by David 

 B. Reger, goes not only into all the necessary details of the 

 history and development of the industries mentioned, but gives 

 further, in a series of chapters, a detailed account of the general 

 geology. The stratified rocks exposed belong to the Dunkard, 

 Monongahela and Conemaugh series of the upper Carboniferous. 

 The concluding chapter is devoted to a study of the soils, made 

 in cooperation with the United States Department of Agriculture. 



In addition to numerous other illustrations, we have, in a sep- 

 arate cover, three large maps on a scale of 1/62,500. These are 

 devoted respectively to the topography, agricultural soils, and the 

 general and economic geology. 



3. Illinois State Geological Survey. F. W. DeWolf, Direc- 

 tor. Bulletin No. 17. Portland- Cement Resources of Illinois; 

 by A. V. Bleiningee, E. F. Lines, F. E. Layman. Pp. 121; 19 

 plates. Urbana, 1912. — The Portland cement industry has 

 developed enormously in recent years, the production of the 

 United States having increased from 8,480,000 bbls. in 1900 to 

 76,550,000 in 1910, the latter valued at $68,200,000. Illinois 



