306 GEOLOGY OF OHIO. 



water issuing from the ice at that point would be left undisturbed, and 

 would be preserved to the present time. The obliqueness of the strati- 

 fication, and the sudden changes in the kind and arrangement of mate- 

 rial making up the strata, together with an occasional mass of unassorted 

 ■glacier clay included in the stratified portions, not only indicate the 

 force and direction of the torrents of water and an interrupted supply of 

 Drift, but also the presence and agency of thick glacier ice at the time 

 of deposition. 



Wells and Springs. — There are in the county a number of copious, 

 strongly sulphurous springs, the best known of which are those at Dela- 

 ware, and near Sulphur Spring Station. Besides these, others are found 

 in various parts of the county, styled chalybeate, and others magnesian. 



The most frequented is that on the grounds of the Ohio Wesleyan 

 University, at Delaware, which is strongly sulphurous. Of this, Prof. 

 H. Mitchell, in giving his analysis of the water, says, according to 

 Howe's Historical Collections of Ohio, 1848 : 



"Of gaseous products, I find that one wine pint of the water, taken immediately 

 from the spring, contains, of sulphuretted hydrogen gas, 12 cubic inches ; of carbonic 

 acid gas, 3 inches. One hundred grains of the deposit, which resulted from evapor- 

 ating several gallons oi water, yielded, on analysis, of muriate of soda, 48 grains ; of 

 lime, 20 do. ; sulph. magnesia, 16 do. ; sulph. lime, 8 do. ; carbonate of soda, 5 do. ; 

 total of the above, 97 grains. The above results show that these waters approach as 

 nearly to the well-known waters of Aix-la-Chapelle and Harrowgate, as those do re- 

 spectively to each other. They are directly deobstruent, and calculated to remove 

 glandular enlargements, as well of the liver as of the other viscera. In cases of slow 

 fever, disturbed state of the functions of digestion, or more confirmed dyspepsia, 

 morbid secretions from the kidneys or bladder, gravel, or chronic eruptions on the 

 skin, I can strongly recommend their use ; and, though last, not least, their power of 

 subduing general constitutional irritation, and quieting and restoring tone to the sys- 

 tem when it has been necessary to have recourse to the frequent and long-continued 

 action of calomel or other mercurial preparations, is, I am persuaded, of the greatest 

 efficacy." 



The sulphur springs at Delaware, located near the Ohio Female Wes- 

 leyan University, and on land of G. W. Little, are of the same general 

 character. 



The same may be said of the very copious sulphur spring in the left 

 bank of the Olentangy, on Mr. Wm. Case's land, in the southern part of 

 the county. This, however, presents the most copious natural flow of 

 highly sulphurous water known in the county. 



The artesian sulphur spring at the Reform and Industrial School for 

 Girls, at Lewis Center P. 0., was formerly a place of much resort. This 

 well was drilled in 1820. The water rises from the depth of about ninety 



