40G l-NCEX. 



Iron, Meteoric, 194 



Iron in motion—its action on Steel, 324 



Kellogg, Prof, E. on the Passage of Lightning, 84 



Kendall, Thomas, on the asserted Acceleration ofWater- Wheels, 104 



Xiabrador, Mineralogy of, 398 



La Place, his Mecanique Celeste, 379 



Latrobite, Prof. Gmelin's Analysis of, 330 



Laumonite, 41 



Lea, Isaac, on Hybernation, 75 



. on the Causes and Effects of Earthquakes, 209 



Lead Mines of Massachusetts, 166 



Leavenworth, Dr. his list of the Rarer Plants of Alabama. 74 



Lee, Charles A. on the Moving Rocks of Salisbury, 239 



Light-Houses, 199 



Lightning, Prof. E. Kellogg on the Passage o£, 84 



Lightning-rods, Dr. Van Rensselaer on, 331 



Lille, Scientific Society of, i 87 



Limestone, Singular Conformation of, 19 



Linnaean Society of Paris, 154 



Lithion, test for, 330 



Lithography, 366 



Localities of Minerals, see Minerals 



Longitude, New Method of Determining the, 107 



Loxa Bark, 364 



Lyceum of Natural History of Pittsfield, 17 7-— New-York, 387 



Lychnophora, a New Genus in Botany, 375 



Maclure, Mr. his Letters to the Editor, 157,253^381,383 



Mahogany, Artificial, 206 



Maize Grain, its power of Germinating, 208 



Manganese, Oxide of, 22 



Marble, Flexible, or Elastic, 241 



Martius, Chevalier de, his Botanical Works, 375 



jVIecanique Celeste, 379 



Medical School of South Carolina, 392 



Meteoric Stone of Maryland, 351 



. Maine, 400 



Meteorological Journal of Dr. L. Foot, 171 



. , Tables of M. Wallestein, 394 



Milbert, Mr. his " voyage pittoresque dans I'Etat de New- York," 380 



Mills, Acceleration of their Motion in Night and in Winter, 104 



Mineral, a new, 361 



»— dealers, their cupidity, 158 



Mineralogical Notice, 400 



Minerals on Connecticut River, 177 — American, Dr. Robinson's Cata- 

 logue of, 396 — Dr. Fowler on some New and Extraordi- 

 nary, 242— of West-Point, 402 

 I I ., Miscellatieous Localities of, Tjy Rev. E. Hitchcock, 20 — Dr. 

 Joseph Barratt, 39— Charles A. Lee, 42— Geo. W. Car- 

 penter, 45— J. G. and A. B. Anthony, 46— Charles U. 

 Shephard, 47, 248— Steuben Taylor, 48— Dr. S. Robinson, 

 49 — Jacob Porter, 54 — Carpenter and Spackman, 245 — 

 Thomas H. Webb, 246— Dr. E. Emmons, 249— Geo. W. 

 BeBedict, 250 — Emerson Davis. 252 



