336 



INDEX. 



Ma, Monroe Co., 68 



lUamas, ■•■ & 2 



Indian Mill Creek Salt Well 90, 93 



statistics of, 1*9, 169 



Ingham Co. , H* 



Investigations to be undertaken by ex 



perts,. 



31 



Ionia Co., 114,121 



Ipperwash (Cape) 71, 72, 74 



Iron Mountain, Mo., 49 



Iron prcs, magnetic and specular, of L. 



' Superior, 49 



Kidney, 26,76 



Black Band, 115 



" Iron Region," reported on by Foster and 



Whitney, 16 



Isabella Co., 114 



Isle Royale, 48 



Jackson, Dr. C. T., U. S. Geologist of L. 



Superior, 15 



Jackson City 117, 118, 126 



Jackson City Coal Co., 117 



Jackson Co. .. ... 84, 90, 97, 113, 114, 129, 132 



Jacobs, S., Jr., well of, 84 



Jesuit Missionaries^ explorations of, 5 



Jewell, Dr., Zoological Assistant, 25 



Jonesville, Hillsdale Co. , 84, 88 



Kalamazoo Co., 84 



Kaskaskia Limestone in Mich. , Ill 



Kent Co., 90 



Kerr, Jno. A. , information from, 124 



Kettle Pt. , C. W. See "Ipperwash (Cape)." 



Keweenaw Pt. 48 



"Kidney Iron Formation," 13 



L. 



Lake Co 85,97 



Lake Huron, Coast-trend of 61 



Lake Ridges and Terraces, 129 



Lakes, Inland, origin of 131 



Lakes, the great, general conformation of 



strata about, 44 



Lake Superior, explorations along, 6 



Land District of, organized, 15 



reported on by Foster and Whit- 

 ney, 16 



geological position of 45 



Lake Superior Sandstone, 48, 49 



Lamont, Ottawa Co., 84 



Lampblack from peat, 197 



Lansing, Ingham Co., 120 



Lapeer Co. , " 83, 97 



Lathrop, Dr. G. A. , his connection with 

 Bait discoveries, 24 



aid received from, 32, 120 



Laurentian Series of Logan 49 



Lawson, Jas. S., description of "Lake 



Terrace" by,.. '. 32 



Leda dems-mammillata, 87 



nuculaiformis,. .'. 87 



Ledapandortzformis, 87 



Leelanaw Co., r 73 



LenaweeCo., 76 



Leoni, Jackson Co., 98 



Leonidas,St. Joseph Co., 76 



leperditiafabulites, 62 



Leptana subtenta, 62 



Leroy, Calhoun Co. , 76 



Liberty, Jackson Co. , ."..... 84 



IXgmlites, 66 



Lignite 130,198 



Limestone of L. Erie, 14 



Limestone, Corniferons, {See, also, " Up- 

 per Helderberg,") 4 ... 13 



Thunder and Little Traverse Bay, M 



Black Bituminous, {See, also, " Ham- 

 ilton Group,") 1* 



Mackinac, {See, also, " Upper Helder- 

 berg,") 1? 



Lingula, 116, 117,119,120 



Lithographic stones, M 



Lithostration mammilla-re, 103 



Vmgiconicum, 103 



Little Traverse Bay,. .63, 64, 66, 68, 69, 70,77 



Livingston Co., 114, 121 



Local catalogues of Plants. See " Plants." 



Lock, Ingham Co., : HI 



Lockport.N. Y., 67 



Logan, Sir William, on Azoic rocks, 49 



Long Lake, Presqu' Isle Co., 62 



" Lover's Leap," Mackinac, 60 



Lower Limerock of Houghton, 16 



Lower Peninsula of Mich. , general strati- 

 graphical position of , .- 44 



Lozonema Boyd.it, 59 



Lucina, 86 



Lyons, Ionia Co. , 128 



Lyon's Salt Well, 74,76,90,93 



statistics of, 145 



M. 



Machosracantkus 64 



Machigamig R. 48,49 



Mackinac I. , 58, 60, 62, 64, 68, 128 



Macomb Co., 73,83,132 



Maiden , Capt. , aid received from, S3, 72 



Mammals, Catalogue of 219 



Notes on,..-. 221 



Manistee Co. 85 



Manitoulin Is., 67 



" Manitoulin portion of Upper Limerock," 16 



Marble, 68 



Marblehead , Drummond's I. , 55, 66 



Marengo, Calhoun Co., 84 



Marl depositeB, how produced, 131 



Marshall, Calhoun Co., 81 



Marshall Group, description of 80 



distribution of, 82 



palaeontology of, 85 



fauna of, compared with that of Rhe- 

 nish Provinces...... 87 



economical uses of. 88 



contains brine, 97 



thickneES of, 163 



Mason Co., , 85 



Mastic from peat, 197 



Mastodon 132 



Materials' of Michigan rocks derived from 



theN., 181 



Maumee R. , collections from, 22 



MoArthur, Alex., coal mining of, ..122,161 

 McReynolds & Stewart's plaster quarry,.. 91 



Meade, Capt., aid offered by, 81 



MecostaCo., 121 



Medicinal Plants. See "Plants." 



Medina Sandstone, 65, 80 



Melania in modified drift, 130 



Mendon,St. Joseph Co., 76 



Menomonee R., 40 



iTirista, 65,75 



Miristella,.a 65 



Metallic ores of Mich. , list of, 166 



Mctamorpbic rocks, 15 



Metcalf , Martin , aid received from , ... 32, 168 



Meteorology, 81,207 



Michigan Salt Group, description of, fll 



petrography of, ;.... 01 



distribution of, 98 



