760 The Glaciated Area of North America. [August 7 
The accompanying list of counties is numbered to correspond to 
those in the plate : 
: 
1. Williams. 23. Hardin. 45. Pike. 67. Muskingum. 
2. Defiance. 24. Logan. 46. Adams, 68. M 
3. Paulding 25. Champaign. 47. Sciota. 69. Athens, 
4. Van Wert. 26. Clarke, 48. Erie. 70. Meigs. 
5. Mercer. 27. Greene. 49. Huron. 71. Gallia, 
6. Dark 28. Clinton. 50. Lorain. 72. Lake. 
7. Preble 29. Brown. 51. Richland. 73. Geauga. 
8. Butler. 30. Ottawa. 52. Ashland. 74. Portage. 
9. Hamilton. 31. Sandusky. 53. Knox. 75. Stark. 
10, Fulton. 32. Seneca. 54. Licking. 76. Tuscarawas. 
11. Henry. 33. Wyandot. 55. Fairfield. 77. Guernsey. 
12. Putnam 34. Crawford. 56. Perry. 78. Noble. 
13. Allen 35. Marion. 57. Hocking 79. Ashtabula, 
14. Auglaize 36. Morrow 58. Vinton rumball, 
15. Shelby 37. Union 59. Jackson. 81. Mahoning, 
16. Miami. 38. Delaware. 60. Lawrence 82. Columbiana. 
17. Montgomery. 39. Madison. 61. Cuyahoga. 83. 
18. Warren. 40. Franklin 62. Medina. 84. Harrison. ; 
19. Clermont. 41. Fayette. 63. Summit. 85. Jefferson. 
20. Lucas. 2. Pickaway 64. Wayne 86. Belmont. 
21. Wood. 43. Ross. 65. Holmes. 87. Monroe. 
22. Hancock. 44. Highland. 66. Coshocton. 88. W. 
The five figures numbered 5, 6, 7, 8, 9, give the section that ! | 
have zigzagged through Ohio on the scale of six miles to the 
inch. Upon the first two plates I endeavored to represent y 
boundary of what Professor Lewis and myself called the “ fring? a 
the broad dark line representing the limit of the more consider- 
able glacial deposits, the broken line the extreme limit of ar 5 
boulders out of reach of the water courses. West of l 
county I did not think it best to draw this distinction, and WY 
line marks the extreme limit of true glacial action. It will " 
interesting and important for other investigators to examine SF : 
fringe throughout the whole line, and inquire why in mee : 
it is so broad and in other places there is none at all. ator 
deposits of special amount are found at the following places ® 
near the margin in Ohio: Columbiana county—Palestie od : 
northern part of Centre township, and New Alexan aed 
county—two miles south-west of Canton, north eo 
Holmes county—a little north of the line throughout ee 
county— Danville, Millwood, Bladensburg; Licking = aye. 
— 
Wilkin’s run, Newark, Amsterdam; Perry county yr. 
Fairfield county— Rushville, the vicinity of Bern stana s 
