78 Scientific Intelligence. 



Geological Survey. "With, a chapter on the Forests of Buchanan 

 County; by W. G. Schwab. Pp. 278, 16 pis., 22 figs. Char- 

 lottesville (University of Virginia), 1918. — The county here 

 described lies on the southeast border of the central part of the 

 Appalachian coal field and is estimated to contain about 12,000,- 

 000,000 tons of high-grade, coking, bituminous coal in beds of 

 minable thickness. Eighty per cent of the county is true forest 

 land and it is notable that much of the chesnut has not yet been 

 injured by the fungus blight which, has been so disastrous farther 

 north. 



5. Geological Survey of Illinois; Frank W. DeWolf, 

 Chief. — Recent publications include the following : 



Bulletin No. 39. The environment of Camp Grant; by Rol- 

 lin D. Salisbury and Harlan H. Barrows. Pp. 75, 2 pis., 25 

 figs., 4 maps in pocket. Urbana, 1918. 



Also, of the Cooperative Mining Series, Bulletins 23 and 24. 



6. North Carolina Geological and Economic Survey; Joseph 

 Hyde Pratt, State Geologist. Biennial report, 1917-18. Pp. 

 110. Raleigh, 1918. — Presents the results reached during the 

 past two years with respect to geology and mineralogy, forestry, 

 road work, hydrography, etc. 



7. Wisconsin Geological and Natural History Survey; E. A. 

 Birge, Director and W. O. Hotchkiss, State Geologist. — Bulletin 

 XL VII gives a reconnoissance soil survey of northeastern Wis- 

 consin. It is accompanied by a separate series of soil maps 

 belonging to bulletins XL VII to L. 



8. Om Shanes Brachiopodskiffer; by Gustaf T. Troedsson. 

 Lunds Univ. irsskrift, n. f ., 15, no. 3, 1918. — Following a con- 

 certed plan which might well be adopted by graduate students 

 in American universities, the members of the Geological Field 

 Club at Lund have set themselves the task of describing the 

 geology of their province (Scania). Under the inspiring guid- 

 ance of the late Dr. Moberg, their energetic professor, various 

 students, among them Segerberg, Olin, Hede, Dr. Hadding, 

 Westergard, Professor Gronwall, and now Troedsson, have pro- 

 duced a succession of valuable memoirs on the stratigraphy and 

 paleontology of the Ordovician and Silurian. 



The latest contribution describes in detail the stratigraphy 

 and fauna of the Brachiopod shales (Upper Ordovician). 

 Forty-one of the 46 species found had not previously been 

 reported from these beds, and 21 are new. It is of interest to 

 note that while the fauna as a whole is Ordovician, the author 

 regards 5 of the species as prophetic of the Gotlandian, so that 

 even where corals are absent, the late Ordovician contains rec- 

 ognizable Silurian elements. The ontogeny of Dalmanites eucen- 

 trus is described, and proves to be of unusual interest. The two 

 plates present excellent figures of all the species. p. e. r. 



