[Cover]

[Frontispiece] View on the Mississippi River, p. Plate I

[Title page] Geology of Wisconsin. Survey of 1873-1879, pp. [i]-[ii]

Letter of transmittal, Chamberlin, T. C. pp. [iii] ff.

Preface, T. C. C. pp. [v]-viii

Table of contents, pp. [ix]-xxix

Introduction, T. C. C. pp. [unnumbered]-xxxii

[Part I. The geological structure of northern Wisconsin], Irving, R. D. pp. PLATE VIII-[1] ff.

[Geological structure of northern Wisconsin], pp. PLATE IX-25 ff.

Part II. Lithology of the Keweenawan system, Pumpelly, Raphael pp. [27]-49 ff.

[Part III. Geology of the eastern Lake Superior district], Irving, R. D. pp. PLATE X-[51] ff.

Introduction, R. D. I. pp. [53]-59

Chapter I. Topography, pp. 60-91

Chapter II. The Laurentian system, pp. 92-99

Chapter III. The Huronian system, pp. 100-166

Chapter IV. The Keweenawan or copper-bearing system, pp. 167-206 ff.

[Chapter V. The Lake Superior or Potsdam sandstone, pp. PLATE XIX, A-210 ff.

[Chapter VI. The Quaternary deposits], pp. PLATE XX-214 ff.

Appendix a, pp. 215-223

Appendix b, pp. 224-238

Part IV. The Huronian series west of Penokee gap, Wright, C. E. pp. [239] ff.

Introduction, pp. [241] ff.

Chapter I. Dipping needle and solar dial compass, and the method of employing them, pp. [243]-247

Chapter II. Geological cross-section of Penokee iron range, pp. 248-256

Chapter III. Special examination of Penokee iron range west of the gap, pp. 257-301 ff.

[Part V. Geology of the western Lake Superior district], Sweet, E. T. pp. PLATE XXXII-[303] ff.

Introduction, E. T. S. pp. [305]-309

Chapter I. Surface features, pp. [310]-329

Chapter II. Geological formations, pp. 330-356

Chapter III. Ore deposits and mines, pp. 357-362 ff.

[Part VI. The geology of the upper St. Croix district, based on the notes of the late Moses Strong, pp. PLATE III-[363] ff.

Introduction, T. C. C. pp. [365]-366

Chapter I. Surface features, pp. [367]-381

Chapter II. Quaternary formations, pp. 382-389

Chapter III. General description of the indurated formations, pp. 390-398

Chapter IV. Detailed descriptions of the local formations, pp. [399]-428

Part VII. The geology of the Menominee iron region (east of center of range 17 E.) Oconto County, Wisconsin, Brooks, Thomas Benton p. [429]

[Letter of transmittal], Brooks, T. B. p. [430]

Introduction, pp. [431]-436 ff.

[Chapter I. The Huronian series in general], pp. TABLE I-TABLE III ff.

Chapter II. Local details, pp. 451-497

Chapter III. Mineral composition, transitions and associations of the Menominee rocks, pp. 498-532

Chapter IV. Description of typical rocks, pp. 533-599

Chapter V. Microscopical observations of the iron bearing (Huronian) rocks from the region south of Lake Superior, Wichmann, Arthur pp. 600-656

Appendix a, pp. 657-660

Appendix b, pp. 661-663 ff.

Part VIII. The geology of the Menominee iron region (economic resources, lithology, and westerly extension), Wright, Charles E. p. [665]

[Letter of transmittal], Wright, Charles E. p. [666]

Chapter I. Menominee iron range, pp. [667]-689

Chapter II. Lithology, pp. 690-718

Chapter III. Western and southern extension of the Menominee range, pp. 719-734

Numerical index to specimens from Menominee region, pp. [735]-741 ff.

Index, pp. [743]-763 ff.

[Cover]