v1 CONTENTS 
CHAPTER II. 
DESCRIPTION OF THE GEOLOGICAL FoRMATION OF RED CEDAR, WAPSINONOX, AND PART OF THE 
Lower Iowa Rivers, belonging to the Devonian Period of Europe and the Hamilton 
Corniferous Groups and Onondaga Limestone of New York, 77 
Secr. I. Its Lithological Character and Geological Aspect, illustrated hy Wood- cuts, . a 
Sect. IT. Its Paleontology, illustrated by Stecl-Plate ai beeHy medal-ruled, , 78 
Srcr. III. Its Mineral Contents, ; ‘ 80 
Sect. IV. Its Range, Extent, aud Bearing, . : ‘ ; 80 
Srecr. V. Its Physical and Sigs Character, stinger ated by Weed: cuts, . : : 81 
Sect. VI. Its Local Details, . ; ; , 82 
CHAPTER III. 
DESCRIPTION OF THE CARBONIFEROUS Rocks or Iow4, including that of a Coal-field west of the 
Mississippi, lying partly in Iowa, and partly in Missouri, the extent and limits now for the 
first time defined in this Report, and laid down on the large Geological Map, accompanying 
it; with descriptions of minute, connected sections, passing in two directions through the 
heart of this Coal-field; one series along the Valley of the Missouri River; and the other 
series up the Valley of the Des Moines, . 90 
CARBONIFEROUS LIMESTONE AND COAL-MEASURES. 
A. Lower Series of Carboniferous Limestone, . ; : ; : i ‘ 90 
B. Upper Series of Carboniferous Limestone, - : 90 
Secor. I. Their Lithological Character, and Geological ships ‘tanita’ by Wood: sone; ‘ 90 
Secor. II. Their Paleontology, illustrated by Steel-Plate Engravings, : 94 
Srcr. III. Their Mineral Contents, . : i 97 
Sect. IV. Their Range, Extent, and Bearing fitaateated by Sections wid] Map, : 98 
Sect. V. Their Physical and Agricultural Eoraete illustrated by Wood-cuts, : . 2400 
Sect. VI. Their Local Details, ; i é mea Ci | 
CHAPTER IV. 
DESCRIPTION OF THE GEOLOGICAL FORMATIONS OF THE INTERIOR OF WISCONSIN AND MINNESOTA. 
Sect. I. Their Lithological Character and Geological aa illustrated es Wood-cuts, eee 
Secr. II. Their Palzxontology, és a 
Secr. III. Their Mineral Contents, . : a 
Sect. IV. Their Range, Extent, and eg hlastnted by ee ee Map, ‘ OEE” 3 
Secr. V. Their Physical and Agricultural — illustrated ae Wood- cuts, : . 148 
Secr. VI. Their Local Details, ‘ é pat ie | 
UM AFIER YY. 
On THE AGE, CHARACTER, AND TRUE GrEoLoaiIcaL Postrion or THE LAKE Supertor RED 
SANDSTONE FORMATION, . ; ; : ; :  oeOE 
CHAPTER Vi. 
INCIDENTAL OBSERVATIONS ON THE Upper Missourt River, AND DESCRIPTIONS OF THE 
GEoLoGicAL FormMaTION oF THE Mavvatses Terres (BAD LANDs) oF NEBRASKA 
. TERRITORY ; developing a new feature in the Geology of the West, and disclosing the former 
existence of many New Species and Genera of Animals; also, New Races of Ruminating 
Pachyderms, and Omnivorous Ungulate Ruminants, which roamed high up in the Valley of : 
the Missouri, at the dawn of the Tertiary Period, . : : j ; Re 
