Scientific Intelligence. 



iss of tho Lower Mlu 

 Primordial) ; Tppor 



1 (ITainilton group) S 





rnor of the Stato. Tlie Mibcarboniforoius rocks, which 

 irth westward across the Stato, eonsist of four subdivisi 

 mo that are recomiized by VVorthen in Illinois; 1, the 

 ok group, the lowest and widest in extent, reaching 



ird; .i, the Keokuiriimestone (in which the Warsaw li 



ograpbW 



and the work in its typogr.iphx as wcW a^ its ^cienci i-> :»'' ' 



State, made up of layers of paper colored and lettercil 



for popular illustration, and one that nia\ be of gn.it -^ 

 public lectures on the science. It is particulailv ail. 

 regions of nearly horizontal rocks. 



The se-ond volume of the lieport is to be devoted to 

 geology, litholocrv, mineralogy, and chemistry, and will 1'^ 

 paine<l hy a geolooical chart of the State. The Choraid 

 will be by Prof. P:merv, who. Dr. White observes, *' has p 

 Ins duties with a zeal and conscientiousness worthy ol ai' 



3 Iteportofthe Geoloqical Exploration of the Fort i' - 

 (tlld, made undtr the rUrc'tion of Mai Gen. J. ^^- ^'\ 

 Chief of Enrfineer.^ h,, riareiJ hlnq, V. >S. Genloc}U^; 

 Mmnnj lnrh,.<f,,j; i.y .] ^^u.^ I). I[\'.,i I irith Gevlo(J[>'^^\ 



