Wood Cuts.

Hildreth's Section near the Ohio River, 18
""of Rock Strata at the Grotto of Plants, 20
""""at Indian Run, 23
""Putnam Hill, 31
""Limestone Strata on the Clear Fork, 41
""Rock strata on Will's Creek, 44
"Topography of Tygart's Valley, and vicinity, 55
"Figure of outlines of hills near Clarksburgh, 59
"Section of Rock Strata " " 60
"Sectional View of Coal Deposits between Morgantown and Pittsburgh, 64
"Section of "Coal Hill," at Pittsburgh, Pa., 68
""Rock Strata at Kiskiminitas, 75
""Wheeling Coal Strata, 80
""Madrepore Deposit, on Gauly river, 100
""Layers of Sandstone, 102
""Coal Strata at the Salines, on Kenawha River, 104
""Strata in certain hills, 130
"""at the Junior Furnace, Scioto Co., 133
*Dewey's Figures of Carices, Tabb. W, X, Y, Z, Figs. 69-84, 245
""of Kobresiæ on Tab. Z, 253
*Thirty separate leaves containing in all 156 figures of organic remains, illustrating Hildreth's paper on Geology of Valley of the Ohio. Details of the contents of these are given on pp. 149-154
View of Pomeroy's Coal Beds, at Carr's Run, Ohio, 50
"Marshall's Pillar–Cliffs of New River, Va., 91
"Falls of the Kenawha, Va., 101
"Kenawha Salines, 104, 113
"Putnam's Hill, from West Zanesville, 30
"""and the Upper Bridge at Zanesville, on the Muskingum river, 30
Fata Morgana at Gibraltar, 217
View of the Traun-Stein Rock, 224
Montezuma's Battle-axe, 229
R. Hare's Apparatus for showing explosive reaction of Hydrogen with Chlorine, 243
"""for evolution of Prussic Acid, 244
Carson's Diagrams respecting Currents in Water, 342, 343
*Twenty-four Figures of Ornithichnites, by Hitchcock, 307


Vol. XXX.–Plates.

1, 2. Transition Rocks of the Cataraqui, 233
3, 4. Figures to illustrate Formation of Twin Crystals, by J. D. Dana, 275
5."of the Hydrachna formosa, 354

Wood Cuts.

Ruggles's Section of Stone-quarry hill, 3
"Plan of Country around Fort Winnebago, 7
Locke's Botanical Press, 54
Bonnycastle's Views of the Aurora Borealis seen in Canada, Dec. 1835, 133, 134, 135, 136
Movable Hood, for smoky chimneys, 170
Filter, for domestic purposes, 172
*Dewey's Figures of Carices. Tabb. Aa, and Bb, figs. 85-93, x, 278; xxx, 59
Bonnycastle's Sketch of Rock with Organic Remains, (Canada), 243
Dana's Diagram to illustrate Ellipsoids, 280
Mather's Apparatus for measuring Expansions of Solid Bodies, 326, 328
Emmons's Section of a Trap Dike, 332
""Contorted Strata, 337
Emmons's Section of Cape Split, Nova Scotia, 337
Various Geological Sections and Views, 339, 341, 343
Figures of Forms of Calcareous Spar, 347
Diagram illustrating position of Meteoric Cloud, 371
Large Crystal of Columbite, (Prof. Johnston,) 388


Vol. XXXI.–Plates.

1. Portrait of Rev. John Prince, of Salem, Mass., (Frontispiece,) 201
2. Redfield's Map of the Western Atlantic, with courses of various Hurricanes, 1835, 115
3. Argulus catostomi, 297
4, 5. Illustrations of the Impregnation of Plants, 318
6. Emys oregoniensis, 382