Vol. XLVIII.–Plates.

1. Bailey's Figures of Crystals found in Plants, 17, 32
2. Dewey's Figures of Carices. Tab. Dd, figs. 98-105, 140
3. Footmarks of unknown Animals from the Stratified Sandstone of Turner's Falls, near Greenfield, Mass., 158
4. Bailey's Figures of Fossil and Recent Infusoria, 321, 342
5. Redfield's Chart exhibiting the Ice as observed in the North Atlantic, 373

Wood Cuts.

Apparatus for Galvanography, 244, 245, 246
Section of Beds at Sterling, N. J., 257
Head of a Fossil Crocodile (Crocodilis [Gavialis] clavirostris,) from New Jersey, 265
Astarte mactracea, (Linsl.,) a new shell, 275
Fusus Trumbulli, (Linsl.,)"285
Nautilus connecticutensis, (Linsl.,) " 286
Various Fossils found in the State of New York, 299, 300, 303, 305, 306, 307, 309, 311, 312, 313, 314
Fossil Footmarks found in Westmoreland County, Pennsylvania, A. T. King, 344, 345, 346, 347, 348, 349, 350, 351
Figure of a mass of Meteoric Iron from Cambria, N. Y., 389
Print from""""" 390


Vol. XLIX.–Plates.

1. Dewey's Figures of Carices. Tab. Ee, figs. 106-117, 42

Wood Cuts.

Prof. Snell's new articles of Philosophical Apparatus, 21
Plan of Artificial Mounds in Louisiana, 40
Maps of Copper Harbor, Lake Superior, &c., 65, 66
Prof. Snell's Diagram to illustrate theory of Halos, 77
New species of Batrachian Footmarks, by J. Deane, 80, 215
Electrical Apparatus, 109
Page's new Electro-magnetic Engines, 133
"Axial Galvanometer, 137
"Double Axial Reciprocating Engine, 141
Footprints from Westmoreland Co., Penn., (A. T. King,) 217
Prof. Hitchcock's Map and section, showing a singular case of Drift in Massachusetts, 260, 261
Solar Index, a new Magnetical Instrument, 306
Sketches of a mass of Meteoric iron from Tennessee, 339, 340
Apparatus connected with Prof. Draper's paper on the Allotropism of Chlorine, &c., 352