646 REVIEWS 
The Cincinnati group he divides into (1) the Madison beds and their 
northern equivalents, (2) the richly fossiliferous shales and limestones 
below the Madison beds, (3) the Gastropod or Marvel Hill beds, and 
(4) a great section below not studied. The author enters into detail 
in the discussion of these formations and their special features in the 
more important localities, in the course of which the fossil contents 
receive special attention. 
The discussion of the Bedford Odlitic limestone by Hopkins and 
Siebenthal is introduced by a discussion of the general geographical 
and stratigraphical features of the formation and associated strata. 
The body of the report embraces a discussion of the structural and 
economic features of the Bedford limestone, a discussion fully war- 
ranted by the very extensive use of the limestone as a building 
material. The treatment covers the results of both physical and 
chemical tests, and embraces the determination of the strength of the 
rock in various attitudes, its elasticity, absorption, resistance to fire 
and to water, its workability and accessibility. A chapter is devoted 
to the commercial features of the formation embracing the quarrying, 
handling of the stone, methods of work, machinery used, uses and 
adaptabilities of the stone, its transportation facilities, statistics of pro- 
duction, etc., which is followed by local descriptions. The discussion 
is closed by a classification of odlitic limestones. 
The reports of the supervisors of gas, of mines, and of oil, embrace 
statistical and economic matter of value to those interested in these 
industries. 
Dr. Scoville’s ‘“‘Geology of Vigo County”? embraces the general 
topography and stratigraphy of the region, the ancient channels which 
cross the territory, but are now buried by the glacial deposits, the 
Pleistocene glacier of Vigo county, and the recent geology, embracing 
the soils and archeology. 
The report has the same general form as preceding annual 
reports, but is more fully and better illustrated. Cre 
Geological Survey of Alabama, Eugene Allen Smith, State Geologist. 
Report on the Valley Regions. Part Il, On the Coosa Valley. 
By Henry McCattey, Assistant State Geologist. 
In this report the physical features of the Coosa Valley Region are 
classified into natural divisions, consisting of (1) broad, flat-topped 
