588 REVIEWS 
Illinois Geological Survey. By WH. Foster Batn, Director, and 
Others. Bulletin No. 8, 1907. 391 pp., 23 pls., maps. Spring- 
field, 1908. . 
The report contains the following papers: ‘‘Steam Improvement and 
Land Reclamation in Illinois,” ‘‘ Petroleum Fields of Tlinois,”’ and “‘ Mineral 
Industry of Illinois,” by H. F. Bain; ‘‘Salem Limestone,” by Stuart Weller; 
‘‘Water Resources of the East St. Louis Region,’ by Isaiah Bowman; 
“Stratigraphy of Southwestern Illinois,” by T. E. Savage; ‘‘Notes on 
Shoal Creek Limestone,” by Jon. Udden; ‘‘Cement Materials near La 
Salle,” by G. H. Cady; ‘‘Clay Industries,” by E. F. Lines; ‘‘ Experiments 
on Amorphous Silicas of Southern Illinois,” by T. R. Ernest; “Artesian 
Wells in Peoria,” by J. A. Udden; ‘‘Lead and Zinc District of Northwestern 
Illinois,” by U. S. Grant and M. J. Perdue; “‘ Concrete Materials Produced 
in the Chicago District,” by E. F. Burchard; Extracts from Educational 
Bulletins by Messrs. Barrows, Trowbridge, Jones, Atwood, and Gold- 
thwaite; also articles on ‘‘Coal” by Messrs. Parr, Wheeler, Hamilton, Bain, 
Francis, Bement, DeWolf, Udden, and White. 
The petroleum industry showed a marked advance. In 1907 the state 
produced 24,540,938 barrels of petroleum or about one-seventh of the total 
production of the United States. The oil horizons are mainly in the Car- 
boniferous rocks. Cay. Ee 
Report of the Vermont State Geologist. By G. H. Perkins. On the 
Mineral Industries and Geology of Certain Areas of Vermont, 
1907-6. 302 pp., 5o7pls. Concord. IN Ey 10903: 
This report is the sixth of the present series and contains the following 
papers: ‘‘Mineral Resources,’ ‘Fossil Cetacea of the Pleistocene,” 
‘Geology of Franklin and Chittenden Counties,’ by G. H. Perkins; 
‘Granites of Vermont,” by T. N. Dale; ‘‘Shore Lines in Northwestern 
Vermont,” by H. E. Merwin; ‘‘ Geology of Hanover Quadrangle,” by C. H. 
Hitchcock; ‘‘ Geology of the Town of Swanton,” by G. E. Edson; ‘‘Stellae 
and Rhabdoliths,” by H. M. Seely; and ‘‘Geology of Newport, Troy, and 
Coventry,” by C. H. Richardson. The production of the building stones, 
granite, marble, and slate, has steadily increased, amounting to the total 
value of $10,000,000 yearly. (C5) IIe lal. 
