2l8 INDEX. 



Artksian Boring, Port Austin 77 



" " Port Hope 76 



" " RiHc River 141, 143 



" " Saginaw Valley 94 



" " Standish 144 



" " White Roclc 77 



" " Tawas 79 



Area of Lower Peninsula I 



Aux Grees River 5 



Aux Grees Point 118 



ASPIDICHTHYS 66 



Battle Creek Outcrops of Waverly Group 83 



Bellevue Carboniferous Limestone 112 



Beaver Island Group 23 



Black Lake 5,53 



' ' River 5 



" Shale Formation 64 



' ' Shales of Hamilton Group 61 



Bog Iron Ore 14 



Bois Blanc Island 24 



Burt Lake 5, 53 



Brecciated Limestone, Helderberg Group 29, 32 



Brown's Station Waverly Group 83 



Calcareous Tufa 15 



" Concretions, Black Shale Formation 66 



Carbonate of Iron Concretions 67, 88 



Cass River 5 



Carboniferous Limestone Formation 102 



Caudagalli Fucoids 73, 76 



Caseville Salt Wells 94 



Charlotte 130 



Chester Coal Measures 131 



Charity Islands 119 



Charlevoix 59 



Cheboygan Lake , 53 



Clinton River 4 



Climate of Lower Peninsula , 19 



Clay Deposits 12, 13, 53, 88, 129 



Conglomerates of Drift 14 



" " Waverly Group 72 



" " Coal Measures 132 



Cone in Cone Limestone 66, 139 



Ccelestine 28, 32, 33 



CoNDiT Station Waverly Group 81 



Coal Measures 122 



Corunna Coal Mines 138 



Crawford's Quarries 50 



Dadoxylon 66 



Deep River Explorations for Coal 143 



Drift Formation 9 



