302 ^Scientific Intelligence. 



Vertebrates, hj J. S. Newbery and A. H. Worthen; Section 2 

 Description of Plants, by Leo Lesquereux. 508 pp. royal 8vo' 

 with 31 plates.— Much has been done in this country in the way of 

 Geological Surveys. Yet only two States east of the Rocky 

 Mountains have carried forward such surveys to anything ap- 

 proaching a worthy completion. These two States are Xew York 

 and Ilhnois. Fortunately they supplement one another, so that 

 a geologist, by possessing the reports of the two, when they are 

 finished, i^ill have quite a good account of the rocks and fossils of 

 the whole range of the Paleozoic formations of the country. New 

 lork carries forward the subject to the Coal fomation, while 

 Ilhnois gives much that is new from the earlier limestones, and 

 continues the geology through the Carboniferous period, in which 

 part of the series the State is particularly rich.* 



The fourth volume just issued is, like its predecessors, a hand- 

 some volume, and full of valuable material. Most of the counties 

 here reported on are within the coal basin ; and the reports are 

 full of local details of Coal-measure sections— highly important to 

 the local student and to capitalists interested in coal and iron, hut 

 including few matters of general 

 that the coal tonnage of these counties is 



mately as follows :— Adams county, 830 millions of tons ; Brown, 

 400 millions; Schuyler, about 1750 millions; Fulton, 7000 mill- 

 ions; Morgan, .SOOO millions; Cass and Menard, 4000 millions; 

 iazewell, McLean, \jn^:u\ and .Mason, 30,000 millions; Grundy, 

 900 millions ; Will, m iMillions ; Kankakee, 40 millions; Vermillion, 

 4000 millions ; Kd.,^.-, (Wioo milliunH ; Champaign andFord, 10,000 



i^InX' 



I the< 



Loess; the Drift, ^ 



swamp muck ; the shallow artesian weUsoFtlTegraverof Iroquois 

 county; the ancient channel [probably of a glacier] now filled 

 with Drift, which runs south from the southern extremity of Lake 

 Michigan ; the outlines, level and drainage of "Lake Kankakee;" 

 and the old outflow of Lake Michigan by the valley of the Des- 

 piaines and Ilhnois rivers. It is to be regretted that a map pro- 

 posed lor the purpose of showing details on these latter points 

 could not be published with the volume, « for the lack of means 

 to defray the expense of engraving," even though "the most 

 essential parts of it will be transferred " to the large map of the 

 entire State, now in course of preparation. Detfile are given, 

 touching the unconformability of the Coal measures with the 

 SeSUurian '"''"' ^""^ ""^ *^^ Devonian (or Subcarboniferous) TVith 



ml^rT^ ""^ *^® '''^^^ S*^'«8 *»a^e l^ad surveys in progess; but, in general, in 

 short Uen "Y^^^fP'^t^^tof those interested in the work, 'they ta'« J«^^ j' 



