354 Scientific Intelligence. 



2. The j)ti<Mle Devonian of Ohio ; by Cmnton 11. Stauffkk. 

 Geol. Surv. Ohio, Bull. 10, 1910, 204 pages and 17 plates.— The 

 author here presents in detail an excellent and up-to-date account 

 of the Middle Devonian stratigraphy and faunas scattered along 

 the eastern and northern sides of the Cincinnati arch. At the 

 base is the Colnnibus limestone, 105 feet thick in central Ohio, 

 thinning to 61 feet at Sandusky and to 55 feet west of Toledo. 

 Over it lies the Delaware limestone, 36 feet thick, followed by 

 the Olentangy shale of 31 feet thickness. The last two forma- 

 tions cannot be recognized as such in the northwestern corner of 

 Ohio, and ])ere the Columbus limestone is overlain by the 

 Traverse formation seemingly not over 47 feet in thickness. 



Tiie Columbus coral reef fauna, also rich in brachiopods and 

 especially in gastropods, is very large and has 337 species. The 

 Delaware has 141 and the Olentangy 52 forms. The deposits are 

 continuous in deposition, proven by the fact that 75 species of 

 the Columbus fauna go into the Delaware, while a little more 

 than one-half of the Olentangy fauna is derived from below. The 

 Columbus fauna correlates well with the Onondaga of the New 

 York standard section, while the Olentangy shale agrees best with 

 the lower Hamilton ; the Delaware, on account of continuing the 

 limestone facies of the Columbus, retains much of its fauna but 

 the new migrants point to Marcellus time. The Traverse fauna 

 consists of 128 species, is decidedly Hamilton in aspect and 

 links directly with the development as exposed about Thedford 

 in western Ontario. The interrelation of the Ohio Basin fauna 

 with those of New York and the Indiana and Michigan basins is 

 fully discussed, and the areas of faunal spread are shown on two 

 paleogeographic maps. c. s. 



3. Palceoniscid Fishes from the Albert Shales of Nevi Bruns- 

 wick ; by Lawrence M. Lambe. Canada, Geol. Surv. Branch, 

 Memoir No. 3, pages 35, plates 11, 1910. — From the petroleum- 

 and sulphate of ammonia-bearing dark shales of New Brunswick 

 the author here describes at length five species in three genera of 

 ganoid fishes. The Albert shales are held to be synchronous 

 with the Carboniferous Sandstone series of Mid and West 

 Lothian, Scotland. The latter are considered bj^ the British Sur- 

 vey " to form the base of the Carboniferous system in that 

 country." c. s. 



4. Outlines of Geologic History vnth es2'>€cial reference to 

 N^orth America. Symposium organized by Bailey Willis: 

 Compilation edited by Rollin D. Salisbury. Pp. 306, 1910 

 (University of Chicago Press). — The above title is the one of the 

 title page but the book will be known as "Outlines of Geologic 

 History." Few will recognize in either of these titles the sym- 

 posium on Correlation organized by Willis and presented before 

 Section E of the 1908 meeting of the American Association for 

 the Advancement of Science at Baltimore. The various essays 

 of this symposium were with one exception printed in the Journal 

 of Geology during last year and all are here reprinted in more 



