\ 
INDEX. 43: 
Indian summer, 204 
Indians, education of, 398 
Insect in the wood ofa table, 288 
insects—recipe for driving from trees, 204 
{nstruction, mutual, 174, 176, 178, 383 
public, in Copenhagen, 175 
Journal, American, noticed in the Rev.’ Encyc., 178 
Kendall, Thomas, on the cutting of steel by soft iron, 127 
Kite, Capt. Dansey’s, 184 
Laboratory occurrences, editor’s notice of, 365 
Laplace’s system of the world, 175 
Lea, Isaac, on the north-west passage, 138 
notice of halos with parhelia, 368 
Lead, metallic, English locality of, 191 
mines of the United States, 398 
Leeches, medicinal, 389 
Lighting of large apartments, 385 
Linnean society of Paris, 173, 195 
Lyceum of Nat. Hist. of New York, 198, 397 
of the Berkshire Med. Instit. 400 
Maclure, Wm. on the Pestalozzian system, 145 
letter to the editor, 165 
donations to the Amer. Geol. Soc. 202 
on the anthracite region of Penn. 205 
JMason, O. notice.of rocking stones, 9 
——_—__—_— of localities of minerals, 10 
Mercurial vapour, effects of, 181 
Meteorology, 178 
Michanx’s North American Sylva, 167 
Michigan, Mr. Pierce’s notice of, 304 
Mineralogy, manual of, 400 
Minerals, miscellaneous localities of, 10, 218 
from Palestine, Egypt, dc. 21 
produced by heat, 190 
: of Middletown, 206 
Mitchill, Dr. S. L. on two-headed snakes, 49) 
——____—_——— on the eatable clam, 287 
Nerves, their influence on animal heat, 390 
New York, population of, 398 
North-west passage, Isaac Lea on the, 138 
Ohio, facts relating to certain parts of, 1, 152, 319 
Olmsted, Prof. on illuminating gas from cotton-seed, 362 
Owen, Mr. his establishment and improvements, 165 
Paper-making, 193, 387 ; : 
Paragrele, or hail-rod, 196 
Paris, 386 _ 
Pascalis, Dr. F., on the small-pox, 208 
Pestalozzian system of education, 145 
Philology, 383 
Phosphorescence of sub-resins, 189 
Pictet, Prof. death of, 179 
Pierce, James, notice of Michigan, 304 
Pierce, Leonard, notice of a halo, 369 
Polytechnic institute of Vienna, 379 
Porter, Jacob, notice of localities of minerals, 18 
Printing upon zinc, 388 on 
. = . v 
Prussic acid, effects on vegetation, 190 
