INDEX. 



73 



J. 



Jackson, Andrew, development by com- 

 pany headed by 12 



Jacks Point, rocks at 20 



Johannsen, Albert, assistance of 14 



on Kentucky-Illinois igneous rocks 28-30 



Johnson County, fluorspar mines in 11 



Joplin, Mo., limestone from, analysis of ... 65 



K. 



Kaibab structure, character of 33 



Kaolin, character of 38 



occurrence of 59 



Karbers Ridge, cross section from Rosi- 



clare to 30 



faults near 32 



location and character of 14-16 



origin of 36 



rocks of 26 



Kaskaskia, equivalents of 18 



Kentucky, Crittenden County, fluorspar 



raining in 12 



Crittenden County, limestone from, 



analysis of 65 



rocks in 27 



limestone from, analysis of 65 



production of fluorspar in 68 



rocks in 20 



Kentucky-Illinois fluorspar district, geo- 

 logic map of 14 



location of 11, 14 



index map showing 14 



Keyes, C. R., on Cypress sandstone and Ste. 



Genevieve limestone 23 



King and Fergusen mine, description of... 60-61 



L,. 



Lafayette(?) gravels, character and occur- 

 rence of IS 



Lead, production of 12, 13 



Lead Hill, fluorspar and limestone from, 



view of 54 



mines near 52 



ricks near 21 



Lead Hill mine, description of 54 



replacement in 41 



Lead sulphide, occurrence of 36 



Limestone, analyses of 65 



Limestone and fluorspar, interbanded, 



view of 54 



Limonite, character of 39 



occurrence of 36 



Lindgren, Waldemar, on replacement 41 



Loess, occurrence and character of « 18, 27 



Lonsdalia (Lithostrotion). occurrence of. . . 19-20 

 Loughridge, R. H., on Kentucky-Illinois 



district 31 



Luella mine, description of 59 



Lusk Creek, location and character of 17 



Lyropora rana, occurrence of 22 



subquadrata, occurrence of 24 



M. 



McClellan mine, description of 59 



replacement in 41 



rocks in 42 



Page. 



McGee, W J, on Lafayette formation 26 



Malachite, character of 39 



Mansfield sandstone, character of IS, 25-26 



equivalent of 23 



name of 26 



occurrence of 16-18, 26, 31, 43, 48, .58, 60 



Map, geologic, of Hicks district 22 



of Kentucky-Illinois district 



of Rosiclare district 



Map, inde.x, of Kentucky-Illinois district .. 



Marion Mineral Company, work by 



Marsden lode, galena from, analysis of 



Marshall, — , development by 



Massac County, galena from, analysis of... 



topography of 



Mica, occurrence of 



Miller farm, mine on 



Millstone grit, equivalent of 



Mineral deposits, age of 



relations of topography, water level, 



and 



Mineral Point, Wis., galena from, analysis 

 of 



paragenesis of 



Minerals, gangue, character of 36-38, 63-66 



source of 63-66 



Minerals, ore, character and source of 61-63 



Minerals, original metallic, character of... 38-39 



Minerals, secondary, character of 39 



Mines and prospects, descriptions of 43-67 



Mississippian rocks, occurrence of 17, 20 



40 



Missouri, limestone from, analysis of. 



Mix, Charles, farm of, rocks on 



Mix dike, fluorine in 



location of 



Moore farm, prospects on 



X. 



New Albany shale, equivalent of 19 



Norwood, J. G., on Blue vein 47 



on Cypress sandstone 23 



on Fairview mine 44-45 



on lead mining 12 



on Kentucky-Illinois district 13 



O. 



Ohara member, occurrence and character of 22, 48 



Ohio River, elevations on and character of. 16-17 



fluorspar mines on 11 



Ohio shale, character and equivalents of . . 18-19 



occurrence of 18-48 



Old clay diggings, location of 59 



Old Jim mine, discovery and description of. 13 



Ore deposits, general character of 36-37, 40-41 



minerals in 36-40 



mode of occurrence of 40-43 



materials of, source of 61 



structural relations of 41-42 



Ore shoots, occurrence and character of 41 



Ores, alteration of 42 



character of 'iO 



genesis of 61-67 



Orr's landing, rocks at 28 



Owen, U. D., on lead mining 12 



on Kentucky-Illinois district 13 



on zinc IS 



