100 Illinois State Laboratory of Natural History. 



Fancy Prairie E. Jerrey G30 



Loyd " (>05 



Sweetwater " (520 



See.ll, T.19N.,R. 7 W. " r„sO 



'* 11,T.19N., R. 5 W. " r,yo 



" 35,T.19N.,R. 5 W. " G41 



" 15,T.18N., R. 8 W. '• GiO 



xMERCER COl'NTY. 



Bench-marks. 



U. S. P. B. M. 19. 



Stone step on soutli side of brick build- 

 ing on northwest corner of Main and 



Second streets, Keithsburg 538.87 



U. S. P. B. M. 20. 



Step of Mr. Rife's bri(.*k building on N. 

 W. corner of Alain and Fifth streets, south 



side of building 548.84 



U. S. P. B. M. 21. 



On foundation of water tank, 2 mi. east 



of New Boston, west face 553.59 



U. S. P. B. M. 22. 



In top stone of foundation of north wall, 

 near N. E. corner of Keokuk Northern 

 Line Packet Co.'s Warehouse at New 



Boston 543.59 



U. S. P. B. M. 23. 



New Boston. Union Hotel, in noith 

 wall, near N. E. corner 1.1 M.from ground. 5G9.87 



Aledo C, B. & Q. R. R 738 



Cable R. I. & P. R. R G88 



Gilchrist C, B. & Q. R. R 744 



Jov " G()4 



Kelthsburg " 541 



Keithsbnrg Junction " 5(51 



New Boston " 5(57 



New Windsor " 804 



North Henderson " 77G 



Ugle la. C. R. R 579 



Pre-emption R. I. & P. R. R 849 



Seaton la. C. R. R 615 



Viola* C, B. & Q. R. R 794 



