THE SMITHSONIAN INSTITUTION. 395 



78. Pink quartzite, F 1, Devil's Lake, Wisconsin. 



79. Conglomerate of F 1, Devil's Lake, Wisconsin. 



80. Obolus beds of F 1, b. Miniskah River. 



81. Lower Magnesian Limestone, F 2, 3 miles above Lansing lowsi. 



82. Lower Magnesian Limestone, F 2, Cape Winnebago, Upper Mis- 

 sissippi. 



83. Red Conglomerate, below Lac Travers, Snake River, Minnesota. 



84. Specular Iron, associated with the quartzite, 2J m. E. of Adams, 

 Barraboo River, Wisconsin. 



85. Do. with the milk}^ quartz. 



86. Cherty masses, in F 2, b. near Lanzing, Iowa. 



87. Cellular quartz, in F 2, b. do. in the lead bearing beds. 



88. Rugged cherty beds of Lower IMagnesian Limestone, (lead bearing 

 beds,) near the mouth of the Kickapoo, Wisconsin. 



89. Lower Magnesian Limestone, F 2, a. Prairie a la Crosse, 

 Wisconsin. 



90. Do. 20 feet below the top of section. 



91. Cryst.alUzations of hydrate brown oxide of iron, on chest in beds 

 F 2, b. of Lower Magnesian Limestone. Prairie a la Crosse, 

 Wisconsin. 



92. Kikapoo Copper ore. Sterling's Diggings. 



93. Kikapoo Lead ore, (Galena,) in F 2, b. 



94. Coarse green Liligula grit, F I, c. Lawrence creek, near the St. 

 Croix River. 



95.. Coarse Lingula grit, F 1, c. Mountain Island, Wisconsin. 



96. Amygdaloid asssociated with the trap of Snake River, Minnesota, 

 near Lac Travers. 



97. Do. 



98. Trap of Snake River, i mile below Lac Travers, Minnesota. 



99. Do. 2 miles below Lac Travers. 



100. Trap of Kettle River, 3 m. above its mouth, Minnesota. 



101. Do. 16 miles above its mouth. 



102. Greenstone trap from the Range near the Falls of the St. Croix, 

 Minnesota. 



103. Porph3Titic trap, Fails St. Croix, Minnesota. 



104. Obolus grit, F. 1, b., nearly opposite old mouth of Black river, 

 Mississippi river. 



105. Slab, full of lingulas, &c., from the Falls St. Croix, F. 1, b. 



106. Pebbly sandstone, of F. 1, a. L'Eau Clair. 



107. Coarse sandstone, F. 1, a., six miles below the falls of the Chip- 

 pewa, Wisconsin. 



108. Fragmentary and concretionary bed of hmestone, above the coral- 

 line beds at Iowa city. Dev. 



109. Favosites basaltica, Cam. Calamopora of Goldf , pi. 26, jfig. 4,. 

 from the coralline beds of Iowa city. 



110. Do. 



111. 5th trilobite of F. 1, near the base of La Grange Mountain, 

 upper Mississippi. 



112. 5th trilobite bed of F. 1 of Report, lake St. Croix, Minnesota. 



113. Limestone containing Retepora prisca? Fenestela choetetes. Sec. 

 Upper carboniferous limestone, near mouth of Missoui'i.- 



