STATE GEOLOGIST. 151 







xn. Lmnoumo Bmul 







XIII. Matkkiai> ■ O Willft 







XIV. Soii>\ 







XV 1I\TK!;1.\IS fOm IMTKOVINO TT1K Soil.. 



1 



Gypsum 



4. Brine. 



1 



Mar! 



- :>•!. 



1 





xvi. Wwum am> Brum 



1 



Common WVlls and Springs. 3. Mineral 1 



: 



■ Ik. 





Most of the materials embraced in the above enumeration 



f the very best quality; and when the union of capital 

 and intelligence shall have brought our resources to such a 

 I e of development as they admit, Michigan will be seen to 

 stand among the leading- States in point of mineral wealth. 



COAL. 



Many facts have already been stated which have a direct 

 economical bearing upon the search for coal. A few sugges- 

 tions may here be added: 



1. The occurrence of fragments of coal in the soil, or in ex- 



■ Qfl for wells, does D01 prove the existence nl' a coal seam 

 within many miles, as the outcropping edges of all the rocks 

 been broken up, and the f i . distributed toward the 



south. 



2. In the examination of loose fragments, it may be remem- 

 bered that the oearer we approach the outcrep of the solid 

 seam, thv more abundant the fragments become, especially the 

 finer ones, while at the same time thej are teas equally distribu- 

 ted througfa the soil. 



3. The eeourrence of an extensive sest of fragments may 

 I from the destruction of a former small outiiei of the 



basin, and may be detached many milt s from the principal 



■nam 



4. When an outcrep is actually famd, it will frequent], 



seen to dip uiray from the ooal basin, as if bent down at 



the ms i he miner should not be misled by this peripheral 



dip. 



