CHAPTER V. 



deep borings in (he Stair, with an exhibition of their 

 Urology. 



Reference! bare frequently boon made to borings that have 

 been executed in our State, in Bearch of salt, coal or other Ttl- 

 liable products j ''1 fuels, obtained by such borings, 



have, in many instances, been incorporated into the preceding 



chapters. In the present chapter, I present connected and com- 

 ments of the kind of rocks passed through, in most 

 of the deep boring* of onr State. It has not been thought best 

 Bent these records in all their details; I have, therefore, 

 greatly condensed them, taking care, however, to mention I 

 important change in the strata. The first column in all the 

 tables shows the depth of the well at the upper part of the 

 stratum named in the last column. The second column shows 

 the thickness of the stratum. When the several strata which 

 constitute a formation or group, arc passed, a line is drawn 

 column, and the total thickness of the forma- 

 tion or group is entered opposite, in the third column. The 

 table at the end is a summary of the whole. 



I. — Ar.TKMAX Will at Detroit. 



['•During the years 1829-30, the Hydraulic Company, with a 

 view of supplying this city with spring water, commenced and 

 completed, (although without gaining the object intended,) an 

 artesian well, near that point where Wayne Street Intel 

 Fort Street This point is elevated 3G feet above the level of 

 the surface of Detroit river. The work was conducted under 

 the direction of A. E. Ilathon. In the North-western .Journal 

 for April 21, 1830, an article was published from thr pen of 



that gentleman, of which the following is an abstract ol the 



strata and depth, in the words ot the article t<< which allusion 

 is made:" — Dr. Houghton's Notes.] 



