394 NINTH ANNUAL REPORT OP 



47. Productal limestone, containing P. Cancrlni, 10 miles below Fort 



Kearney, Missouri river. 



48. Spirifer striatus limestone, upper beds of Carb. limestone of 

 Augusta, Iowa. 



49. Productus punctatus, Keokuk Rapids, Miss. 



50. Do. 



51. Do. 



52. Do. 



53. Fusulina cylindrica in Carboniferous limestone, 10 miles below 



Fort Kearney, Missouri. 



54. Fucoidal beds, Marine IMills, St. Croix, F 1, d, in part. 



55. Litliostrotion, probably a var. ot" basaltica, Sugar creek near the 



Iowa line. 



56. Stromatopora concentrica, Iowa cil)^ Dev. 



57. Productal limestone, a few miles above the Racoon Forks on the 



Des Moines River. 



58. Head of femur of Palaeothcrium Proutii? Bad Lands. 



59. Magnesian limestone, with green particles of silicate of iron dis- 



seminated, intercalated with the lower sandstones, F;. I, of report. 

 (Lower Silurian date.) Sac Prairie, Wisconsin river. 



60. Magnesian limestone, intercalated with F. 1, 14 rriiles above Sac 



Prairie. 



61. Lower sandstone, F 1 of report. Dalles of the Wisconsin river. 



62. Lower sandstone, F 1, (Lower Silurian date,) 7 miles Ijelow 

 Helena, Wisconsin river. 



63. Magnesio-calcareous bed containing impressions of Orthis intercal- 



ated in F 1. Section 5 miles above Plymouth, Wisconsin river, 

 138 feet above river. 



64. Magnesio-calcareous rock, intercalated in F 1, 143 ft. above Wis- 



consin river, 5 miles above Plymouth. Contains remains of 

 encrinites. 



65. Lower sandstone, F 1. Petenwell Peak, 200 ft. above the Wis- 



consin, (Lower Silurian date.) .. 



66. Do. of Castle Rock, 65 feet above Wisconsin river. 



67. Green beds of F 1 d. charged with silicate of iron. Miniskah 

 Pass, Upper Mississippi. 



68. Brown magn. calc. bed of F 1 d. Miniskah, Upper Mississippi. 



69. Lower sandstone of Petenwell Peak, 80 feet above Wisconsin. 



70. Lower sandstone, F 1, 5f miles east of Adams, Barraboo river. 



71. Quartzite, 5f ra. e. of Adams, Barraboo river, Wisconsin. 



72. Do. gra}'. 



73. Red beds of Lower sandstone, F 1, 1 m. above Fortification Rock, 



Wisconsin river. 

 73^ Yellowish-red beds of F 1. Castle Rock, 35 I'eet above the Wis- 

 consin river. 



74. Quartzite in F 1, betwetni the Wisconsin river and Adams on the 



Barraboo. 



75. Reddish cpartzite 2i- m. e. of Adams, on the Barraboo river, 



Wisconsin. 



76. Light pink quartzite, sec. 34, townsiiip 12, R. 6 east of 4th P M, 



Wisconsin. 



77. Gray (juarLzitCj Devil's Lake, Wisconsin 



