Wood Cuts.

Rogers's Galvanometer, 40
Johnson's Figures illustrating Rotation of Liquids, 85, 87
Strait's Figure of Compression Bellows, 89
""Air-pump Bellows, 91
""applications of Balance Principle, 92, 94, 95, 96
Durant's Improved Barometer, 98
Chapin's Figures illustrating his paper on junction of Trap and Sandstone, in Wallingford, Ct., 105, 106, 108, 109, 110, 111
Lapham's Geometrical Diagrams, 127, 128
Gorton's"Diagram, 132
Hare's Apparatus for freezing water by aid of Sulphuric acid, 133
Wallace's Dissection of the Eye of the Streaked Bass, 218
Riddell's improved Barometer, 223
Rogers's Apparatus for analyzing Calcareous Marl and other Carbonates, 300
"Self-filling Syphon for chemical analysis, 302
Gorton's Geometrical Diagrams, 304, 306
Live Snake suspended by Spiders, 309
Diagram of Strata from Lake Ontario to Lake Erie, 333
Bones of the Iguanodon in the Sands of the Chalk, S.E. part of England, 358, 359, 360
Crystals of Strontianite, by C. U. Shepard, 365
Figures illustrating phenomena of Magnetization, 402


Vol. XXVIII.–Plates.

Dana's System of Crystallographic Symbols, 250

Wood Cuts.

Plan of improvements at the mouth of the Nile in Egypt, 25
Diagram illustrating computation of Paths of Meteors, 99
Plan of region around Schoharie, N. Y., 172
Hare's Apparatus for obtaining the Nitrogen from Atmospheric air, 263
"large Volumescope for analysis of Atmospheric Air, 265
Conrad's Diagram illustrating Elevation of the Atlantic Coast, 280
Clary's sketch of remarkable Parhelia, Feb. 1835, 304
Bache's Apparatus for Radiation, Absorption, &c. of Heat, 320, 324, 325, 326
*Totten's Figures of new Shells, a separate leaf, to go at p. 347
Bell's improved Air-pump Receiver, 354
Fossil Teeth from Marl Pits of New Jersey, 378


Vol. XXIX.–Plates.

1. Topographical and Geological Map of the Coal Measures and of the Muriatiferous and Ferruginous Deposits in the Secondary Region of the Valley of the Ohio; with profile of the Ohio Valley, 1
2. Grotto of Plants, Ohio, 18
3. Hitchcock's Figures of Ornithichnites, 307
4."Proportional View of the Ornithichnites, 307