400 lADEX. 



I. 



Industry National, Society for the encouragement of, Paris, l98j 

 371 



— ■■ Society for the encouragement of, St. Gall, 481 



Instruction Elementary, society for promoting, 199 

 — _. Brussels, 382 



Public, method of ordinaire, 199, 



Instruments, Philosophical, Gambey's, 374, 383 

 Involutes, 98 



Iodine, mineral spring containing, 387 

 Isosagistic curves, 90 



K. 



Kendall T. notice of a halo,33 7 



L. 



Lakes Ancient, l6 



Lamp Monochromatic, description of, 368 



Leavenworth M. C. notice of plants from Alabama, 61 



Leipsick Fair, 381 



Leyden University, 382 



Localities of minerals, H. R. Schoolcraft, 46— Dr. W. Mead, 49- 

 T. H. Webb. 64, 55— H. N. Fenn, 56-— Dr. Cutbush, 67— 

 Dr. J. Porter, 68, 252— Prof F Hall, 68—0. U. Shepard, 

 251— S. Taylor, 253— Dr. E. Emmons, 264 



London clay, 39, 214 



Lusus Naturae, 22 



Lute Wilhs' 392 



Lyceum N. York, abstract of the proceedings of, 171 



, annals of, 359 



M. 



Made, 61 



Maclnre W. observations on Beudants Travels in Hungary, 256 

 Remarks on rocks accompanying Anthracite, 260 — re- 

 marks on the systematic arrangement of rocks, 26l 

 Magnesia Native, of Shetland, 366 

 Mair R., notice of sulphur in granite, 56 

 Mallows common, flowers of, a test of alkalis, 194 

 Manganese, ores of, 3b6 



— , silicated oxide, 64 



Martha's Vineyard and Elizabeth Islands, Geology of, 240 

 Mead Dr. W. localities of minerals, 49 

 Mechanics, review of a treatise of, 72 



