Geology and Natural History. 471 
6. The Geological Story briefly told, an Introduction to Geol- 
ogy for the General Reader and it beginners in the Science ; by 
James D. Da 264 pages, 12mo, with numerous illustrations. 
aylor 
ges nd structur ocks, it 
takes up, in past IL the se seen of Causes in Geology and their 
Effects, Under this head it ex plains, first, the making of rocks 
(including the preparing of the material) through - agency of 
plants and animals, through the quiet work of air and moisture, 
through heat,—the last topic including the effects of contraction 
and expansion, the formation of volcanic and vat — rocks, 
and the subjects of solidification, metamorphism mineral veins. 
Then, siren i» treats of the making of ew oma all depres- 
sions on the h’s surface ; and, thirdly, of the making and shap- 
ing of hills sr ‘mountains, (1) by igneous ejections, (2) by the 
erosion of elevated lands, and (3) - seg upturving and flexures of 
rocks, and bending of the earth’s eru 
art II, neeneete: sed spat mea up Historical Geology, de- 
scribing the rocks tha orming, the most pro puree kinds of 
plants and animals i a oi living, ihe mountains that were 
making, and other events, during each of the successive ages in 
the course of geological time; and ends with a brief review ‘of the 
progress of life. 
This volume is handsomely printed, and contains several cuts 
not in the Manual of Geo 
7. Catalogue of Lower Siturian Fossils of the Cincinnati 
Gone Sound within He or 50 miles of Cine —— vith descrip- 
Te orals and 
io, Cincinnati. see edition, songs enlarged, i pp- weer Bv0. 
Cincinnati, rye — si ba new species describe 
James are Chete yt. Dincetine, C. Censinnoene 
sis, C. (? O Nealli, Ateolites 2) gra spss Ceram mopora Nichol- 
soni, Ptilodictya acuminata and Alecto 
igin of the Lower Silurian (paca of York and 
Adams emeatiak a a ania ; bail Prrsiror F Razer, in 
hil. 
nean Soci jety, fills over 300 q uarto pages of sci 
