36 A N C I E N T M N U M P: N T S . 



The outwork, of which A is an enlarged plan, possesses all the features of a 

 bastion, and was perhaps designed as such. It could hardly have been intended 

 as a gateway ; for, although the ditch is interrupted for a narrow space at c, the 

 embankment is unbroken. 



The transverse section of the wall, a h, demonstrates the artificial origin of the 

 work, which it is not probable any one would be disposed to deny. The 

 upheaved gravel upon the exterior side of the wall, wherever it is under cultiva- 

 tion, supports dwarfed and sickly maize ; while on the inner side, the grain is 

 luxuriant. This feature and its cause are indicated in the section. 



This work, which was undoubtedly defensive, commands a large peninsula, two 

 miles in circumference, formed by a singular bend in the river. About two 

 hundred paces distant from this enclosure, in a southern direction, is the site of 

 old Fort Dunlap, somewhat celebrated in the early history of the Miami valley. 

 It was invested by the notorious Simon Girty, with a force of six hundred Indians, 

 in 1791, without success. Some distance from the fort, and still further to the 

 south, is a hill three hundred feet in altitude, upon the top of which are two 

 mounds, measui'ing five and ten feet in height, respectively. They are composed 

 of earth and stones, considerably burned. 



PLATE XIV. 



Number 1. — This work is situated near the north line of Pickaway county, Ohio, 

 on the right bank of the Scioto river. It is entirely analogous to many of those 

 already described ; and is only remarkable as possessing three lines of embank- 

 ment, with corresponding ditches, as shown by the section a b. " The ditches are 

 here interior to the walls, which circumstance is adverse to the idea of a defensive 

 origin. The situation, however, with a steep bank and deep water on one side, 

 and deep ravines with precipitous banks on the Others, is one of great natural 

 strength and adaptation for defence. The walls are now very slight." 



Number 2. — This work is, in most respects, similar to the one last described. 

 It is situated four and a half miles north of Worthington, Franklin county, Ohio, 

 on the left bank of Olentangy creek. The artificial defences consist simply of an 

 embankment of earth, three feet in height, with an exterior ditch of corresponding 

 depth. The natural defences are sufficiently obvious. Both of these plans are 

 from surveys by Charles Whittlesey, Esq. 



Numbers 3 and 4. — The character of these works is sufficiently explained by 

 the engravings. From the position of the ditch and other" obvious circumstances, 

 they have been classed as of defensive origin. They are from the Rafinesciue MS8. 



