REVIEWS 677 
few sample plates which have been issued characterize the work as 
excellent. These volumes cannot but be of great interest and value to 
all members of the geologic and geographic professions and also to 
laymen. 
The arrangement of the material in the nine volumes is as follows: 
. Relief features due to weathering and disintegration. 
. Simple features due to stream erosion. 
. Complex features due to stream erosion. 
. Land forms influenced by the nature and composition of rocks. 
. Features influenced by geologic structures. ; 
. Glaciers and relief features associated with ice action. 
. Relief features due to wind work. 
. Shore-line features. 
. Relief features due to vulcanism. 
© COI AN PW dD 
The Executive Committee of the commission consists of J. Brunhes, 
E. Chaix, and Emm. de Martonne. ‘The American members of this 
commission are W. M. Davis and Wallace W. Atwood. 
The price of each volume of the series has been placed at Fr. 30, and 
it is contemplated that 48 plates, the equivalent of one volume, will be 
issued each year. 
W. W. A. 
Illinois State Geological Survey. Bulletin No. 16. Urbana, 1gto. 
Pp. 402; pls. 37; figs. 9. 
This volume deals chiefly with the oil, coal, lead, and zinc resources 
of the state, and contains the following papers: “‘The Administrative 
Report for 1909,” by Frank W. DeWolf, acting director, pp. 11-23; 
‘Elizabeth Sheet of the Lead and Zinc District of Northern Illinois,” 
by G. H. Cox, pp. 24-41; ‘Oil Resources of Illinois with Special Refer- 
ence to the Area Outside the Southeastern Fields,” by Raymond S. 
Blatchley, pp. 42-176; “Studies of Illinois Coal,” a series of papers 
consisting of: An Introduction, by F. W. DeWolf, pp. 178-81; “The 
Illinois Coal Field,” by A. Bement, pp. 182-202; ‘Chemical Composi- 
tion of Illinois Coal,” by S. W. Parr, pp. 203-43; ‘‘The Geology and 
Coal Resources of the West Frankfort Quadrangle,” by G. H. Cady, 
pp. 244-65; “The Geology and Coal Resources of the Herrin Illinois 
Quadrangle,”’ by T. E. Savage, pp. 266-85; “The Geology and Coal 
Resources of the Murphysboro Quadrangle,’”’ by E. Wesley Shaw, pp. 
286-94; ‘‘ Mine Rescue Work in Illinois,” by R. Y. Williams, pp. 295-99; 
“Diamond Drill Core from Franklin County,” Interpretation by 
Jon Udden, pp. 300-301. The volume contains also a paper on the 
