WOOD COUNTY. 375 



Owing to the abundance of the Drift deposits and the monotony of topo- 

 graphical features in Wood county, there is no opportunity afforded for 

 ascertaining the stratigraphical relations of these three phases of the 

 "Waterlime ; yet it is certain that phases Nos. 1 and 2 disappear from the 

 formation toward the south, and phase No. 3 is more largely developed, 

 and seems to acquire more bituminous matter, becoming a thin-bedded 

 but tough slate. Its characteristic outcrop in Wyandot county has re- 

 ceived the name of the Tymochtee slate. Phase No. 1 is believed to occur 

 at different but not constant horizons in the formation, but seems to pre- 

 vail especially in the upper portions. Phase No. 2 has been seen in 

 Wood county only in such positions as would place it in the lowest por- 

 tion of the Waterlime.* 



The Maumee River lies almost constantly on the Waterlime from the 

 west line of the county to Perrysburg. It traverses, however, in that 

 distance, the Oriskany sandstone three times. Throughout this distance 

 the Waterlime shows the lithological characters of phases No. 1 and No. 3, 

 those of the latter being far more frequent than the former. No. 1 was 

 noticed especially at a point about half a mile above Miltonville. At a 

 point a mile below Miltonville the following section was taken : 



Section op the Waterlime, eight bank of the Maumee, near Miltonville, 

 Wood County,' prom above. 



No. 1. Slaty beds, but so tortuous as not to separate ; almost ap- 

 pearing massive, with irregular cavities, which are 

 often lined with calcite crystals, and also sometimes 

 contain "tarry oil," or asphaltum; dark drab, or 

 almost black; hard 10 ft. 



" 2. Thin, but mostly even beds of two to four inches; very 



hard and close-grained ; sometimes tortuous 3 " 



" 3. One bed; close-grained; crystalline and very hard; a 

 bluish-gray, variegated with drab and blue ; silicious, 

 appearing like flint 1 " 3 in. 



" 4. *An irregular exposure of beds like those of No. 1, which 



also occupy the bed of the river, exposed 2 " 



Total exposure 16 " 3 " 



The bituminous appearance of the rock for a mile both above and 

 below Miltonville is so conspicuous, in the form of gummy asphaltum 

 contained in the numerous cavities, and not infrequently staining and 

 making fetid the rock itself, as to induce considerable expense in drill- 

 ing for petroleum. One well, which descended about eight hundred feet, 



* See, however, the section at Bellevue, in Sandusky county, where the top of the 

 Waterlime contains similar beds ; also quarry No. 3, at Tiffin, in Seneca county. 



