Reviexo of Recent Geological Literature. 351> 
Geology and mineral resources of Kansas, with a geological and 
contour map of the state. Robert Hay. World's Fair edition, octavo, 
pp. 66. (From the eighth biennial report of the State Board of Agricul- 
ture, 1891-93.) Topeka, 1893. 
This pamphlet amounts to a compendium of the geology of the state, 
including its economic relations. The topographical map is very general- 
ized, the whole state being embraced in two octavo pages. 
The range of formations is from the Subcarboniferous (Keokuk) to 
the present, omitting, however, the Jurassic and Triassic. The Com- 
anche Peak beds and the Trinity sands of Texas are found to e.xtend 
into Kansas, the two having a thickness of 1.50 feet. These and the 
"Permian "' cover a horizon of beds whose age has been the subject of 
much difference of opinion. The " red beds," here called Permian, have 
been put in the Triassic by most geologists, and the Trinity sands are 
claimed as Jurassic by Mr. Marcou, who also identified the Comanche 
Peak beds as Neocomian. Mr. Cragin has applied locally the name 
"Cheyenne sandstone" to the formation called Trinity sands by Mr. 
Hay, although Mr. Cragin was latterly disposed to admit that the 
Cheyenne sandstone represents the northward extension of the Trinity. 
After a brief description of the various formations in their typical out- 
crops, or as discovered by deep wells, the economic products of each are 
enumerated, and their value to the material development of the state is 
presented. The important mineral products of the state are lead and 
zinc, coal, lignite, rock gas, salt, gypsum, cement, lime, building stone,, 
clay, vitrified brick, mineral waters, and the surface soil. The work 
will serve, as doubtless it was designed, as a convenient hand-book of 
the natural resources of the state, for general distribution at the World's 
Fair at Chicago. 
Tlie Eocene and Oligocene beds of the Paris basin, accompanied by a 
geological map. George F. Harkis and Hexky W. Burrows. 8vo , 
129 pp. (Read before the Geologists' Association, London, Apr. 3,1891.) 
The Paris basin is the typical area for the Tertiary terranes. There 
Cuvier and Brongniart did their classic work, and thither Lyell repaired 
for comparison of his English studies with those of his French con- 
freres. De Blainville, P. Gervais, Pictet and latterly Gaudry followed 
Cuvier in giving to science a restoration of the extinct vertebrates. 
Such names as Deshayes, Lamarck, Lambert. DeBoury, Defiance and 
latterly Cossmann are forever linked with its molluscoidea. Its strati- 
graphic succession has been dissected, compared and established, first 
by the original explorers, Cuvier and Brongniart, and subsequently cor- 
rected and more minutely described by many savants. Foreign students 
have a vast amount of geological literature to consult should they desire 
to know the Paris basin thoroughly. 
It has been the task of Messrs. Harris and Burrows to furnish an 
epitomized English re-description of the whole, in the light of the pres- 
ent condition of knowledge, eliminating, correcting, and supplying new 
material. The nomenclature is revised in accordance with accepted 
rules. Typical field sections of the various members of the series are re- 
produced, with directions how to find thorn. Tables show the names and 
