318 



INDEX 



Gneiss, analysis of, 118. 



Goat Hill, 96, 218. 



Gold in Cecil county, 222. 



Granite at Frenchtown, 204. 



Granite-gneiss, 99. 



Granite-gneiss, described, 90. 



Granite-gneiss, petrography of, 117. 



Granite as road material, 225. 



Gravel as road material, 225. 



Gray & Sons, 203. 



Grays Hill, 27, 65, 75, 93, 128, 129, 



131, 181, 206, 233, 246. 

 Griffith, Dennis, 35. 

 Grimsley, G. P., 40, 59, 83, 111, 118, 



120, 121, 136, 137. 

 Grosh, Warren, 208. 

 Grove Point, 67, 157, 158, 159, 160. 



H. 



Haines, 104, 113. 



Hall, James, 104. 



Hance Point, 210, 211. 



Happy Valley Branch, 85, 98. 



Harducoeur, C. P., may by, 34. 



Hardwood trees, list of, 303. 



Harriats farm, 161. 



Harrisville, 91, 112, 119, 126, 133. 



Havre de Grace, 111. 



Hayden, H. H., 37. 



Heilprin, A., 45. 



Hematite, 97. 



Herrman, Augustin, 33. 



Higgins, Jas., 53, 54. 



Highest observed temperatures, 



table, 255. 

 Hilgard, 46. 

 Hill, R. T., 43, 59. 

 Hillebrand, W. F., 116, 120, 124, 133, 



138. 

 Historical review, 31. 

 History of geographic research, 32. 

 History of geologic research, 36. 

 Hobbs, W. H., 84. 

 Hog Hills, 27, 66, 166, 168, 170, 181. 

 Hollick, A., 43. 

 Hooper farm, kaolin at, 215. 

 Hornblende, chemical analysis of, 



120. 

 Hornblende, biotite-granite, 119. 

 Hornblende-gabbro, 92, 121. 

 Hornblende-granite, 91. 

 Hunt, T. Sterry, 116. 

 Huntington, J. H., 56. 

 Hydrography of Cecil county, 263. 

 Hypersthene-gabbro, 92, 125. 



I. 



Igneous intrusives, 90. 



Igneous works, classification of, 143. 



Interpretation of the geological re- 

 cord, 173. 



Intrusives in the gabbro belt, 100. 



Iron Hill, 25, 93, 128, 129, 130, 181, 

 216, 218. 



Iron Hill station, 83, 93, 128, 129. 



Iron ore, 218. 



" Ising-glass soil," 90. 



Jackson, kaolin at, 217. 

 Johannsen, A., 21. 

 Johnson, Arthur N., 61. 

 Johnston, Geo., 26, 55, 219. 



K. 



Kaolin discussed, 211. 



Kaolin, analysis of, 214. 



Keach, J. B., 295. 



Kenmore Pulp and Paper Company, 



295. 

 Keyes, C. R., 50, 59. 

 Keyser, Wm, 59, 219. 

 Klondike Gold Company, 97, 223. 

 Knight Island, 162. 

 Knowlton, F. H., 60. 

 Kunz, G. F., 56. 



Lafayette formation discussed, 149, 



165. 

 Lafayette formation, sedimentary 



record of, 178. 

 Lafayette stage, 73. 

 Lake, Griffing, and Stevenson, 36. 

 Lamb, A. L., 250. 

 Laurel Hill, 151. 

 Lea, Isaac, 45. 

 Leeds, 92. 

 Leonard, Arthur G., 40, 62, 83, 121, 



125. 

 Leslie, 91, 181, 215, 248. 

 Lesley, J. P., 55. 

 Lewis, H. Carvill, 43, 55. 

 Liberty Grove, 89, 101. 

 Limonite, 97. 

 Lindenkohl, A., 58. 

 Little Elk Creek, 28. 

 Livermore and Dexter, 50. 

 Low, Andrew, 222. 



