- 
_ . ping compass, 
Locomotive spark extinguisher, 209 
INDEX. 
K. 
 Pemey roduction of, 324 
in oe Tie lead, 16 
i. 
Lea, ai or epeta rs: of new shells, ao 
TOXi 
Lead, , smelting of, “r 
Leedom, E. C., seiton of of an astro- 
nomic mac 
.J., on ae involution of poly- 
s, 239. 
“ane criacnes 0 and experiments on, 
Lightning, facts connected with, 393, 
Limestone, “hapa ec, = — York, 228. 
Lindley’s Elements of Botany, 183. 
Me Mt 
Linneus’s — erin, 375, 
Linsley, 
with, a stroke of lightnin , 393. 
Locke, J., on alabaster in t 1e Mammoth 
Cave of Kentucky, 206. 
new species of trilobite, 366. 
on the maniplatians 0 f the dip- 
30 
Mi 
the use of the hot blast||Mid Lot 
9, Mi 
Nitrogen compor 
|Northern ‘Antiquaries, Society of, 214. 
¥ 
407 
ars cathe Americana, new edi- 
croico fungus, 195. 
n coal, easianlc of, 369. 
inera 
Mines, wh gh in Cuba , 388. 
Min nima, bar ‘ometric, 403. 
oraines, 
Mo 
Murchison, R. 1., travels in Russia, 213. 
N. 
Natural History A “ina of, 186. 
on Journal of, 379. 
Naviculacee, ase of, 88. 
New he. geological reports of, 227. 
organic 
0. 
Organic compounds, nitrogen in, 253. 
e bieiatih dage bones of, 392. 
me facts connected O 
, 318. 
zone, a new element 
P. 
Paddle-wheel, and screw, onidlei a of 
eo sels 
on _barometrie minima of 
Feb. ies, 1842, 4 
Longitude, Wa by on the ne eclipse of at 
stars, 39§ es 1842, ¥75,' 
ee = ern Panties, Park's, 192. 
sais 8 pie Parthian A oo picture of, 215. 
ge C., "i visit to the ara States, Perchloric 
Elements and Principles of Geol- 
ogy, 191 
M. 
sgt ren) C., on the glacial theory © 
gas 
Magaetim, terrestrial, observations i in, 
ae Cave, wae alabaster i in, 
ese, peroxi ide o: 
ancrcs as stimulants .  efetation, 319.1) 
Matter demonstrated to be heavy, 264. 
eorite of Chateau Sica ; 408. 
Meteorites tt in France, 
ries neat bee journal at Marietta, Ohio, 
cone moranda, ancient, 399 
checramees ns in Cuba, 292. 
es vont, James, meteorolo, 
Pollen, showers 
Polynomials, 
Pycnantbemum, Sotioenbis of the genus, 
44, 
eriodical aoe ‘of August and No- 
vem 
Perkins, &. R. ., Solution of a functional 
equation, 
Ht: ‘notice of fossil bones from 
Oregon Territory, 
Photographic copies of engravings, 164. 
cal notes in 
Planaidoha: Russell’s, described, 400. 
lants, new § a 
Plummer, J. n the combustibility of 
wood ashes, iéz 
on the wiye’s rot, 197. 
eke 
nid 
R. 
es C. S., zoological writings of, 
Meteorolo Rain- sense globular, 159. 
Meteors of April i we 1841, 397. Redfield, W. C., bis theory of storms, 
riodical, of A ngust and No-|| Dr. Hare’s objections to to, 
vember, 401. of Dec. 15th, 
Michaux, A, botsuial researches in the 
United States, 2. 
1839, 112. 
reply to Dr. Hare’s “ ob- 
jections,’” 299. 
