Geology and Mineralogy. 63 
The geological structure, products, and general relations of the 
second geological district are discussed at length, and with much 
that is new and important, by Prof. E. B. Andrews, It includes 
Gallia, Meigs, Allen, Morgan and part of Muskingum Counties, and 
ion i io. Prof. An- 
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. fact and 
era of the Cincinnati uplift are presented in detail, and illustrated 
by a map. 
: The geology of Ashtabula, Trumbull, Lake and Geauga Coun- 
ties is reported on in the following pages of the Report by M. C. 
Read; of Williams, Fulton and Lucas Counties, and West Sister 
terraces of Maumee Valley by G. K. Gilbert, has led Prof. Gilbert 
© Important results—as the readers of this Journal have already 
1 “oe from his pages in the first volume of the present series 
71), 
any of the pages of the several reports owe much of their 
Value to analyses and other results of chemical investigations by 
the chemist of the survey, Mr. T. G. Wormley, some of whose 
