60 HISTORT OF OHIO. 



from which the light house at Portland, is supplied with all the 

 oil, used in that establishment. This spring indicates coal in 

 that region. 



There are many other such springs, all over the coal region 

 of this state. Such springs issue from beneath beds of either 

 coal or shale, and, we doubt not, many such springs will be 

 found, in the same region, from which, vast quantities of petro- 

 leum will be obtained. Large quantities of this petroleum are 

 sold in bottles labeled " American Oil," and used for sprains, 

 rheumatism, gout, &c. dec. It has acquired considerable cele- 

 brity, already, and should it fall into the hands of some enter- 

 prising " water doctor," or some, Swaim, a large fortune, would 

 be realised by the sale of it. 



LAKE ERIE, ITS ISLANDS AND MINERALS. 



Lake Erie bounds this state, from the western limits of 

 Pennsylvania, in the middle of the lake, extending westward- 

 ly, along to a point in the water, north of Mauraee bay. 

 Lake Erie bounds this state, in a direct line, about one hund- 

 red and sixty miles. 



The lake itself, is nearly three hundred miles in length, and 

 is one hundred miles in width, in the widest place. Its aver- 

 age breadth, is about fifty miles, and its circumference is at 

 least seven hundred miles, following the various windings of 

 its shores. Its surface occupies, about eight millions of acres 

 of water. It is a beautiful inland sea, and is as useful as it is 

 beautiful. It has many landing places, and, since the United 

 States have begun to improve the harbors, along its southern 

 shore, it has several excellent harbors, for such vessels as nav- 

 igate it. Towards its western end, from Sandusky bay, west* 

 ward, it contains in it, several valuable islands. Their names 

 follow, viz : 



Cunningham's island, Put-in-bay island, 



Bass island. Gull island. 



The three Sisters, Ship island. 



Rocky island, Pick pocket island, 



