A60 
°F 
Jackson, Dr. C. T., on me ing nepheline, 
and zea from Main 9. 
Johnson fi Woks; oh the tenacity of 
iron, 2 
Jones, T. WwW. n the blood-corpuscle, 128. 
ones, W., on “death -— = sappearance of 
some trees and sh 
Journal, Boston, of Nal History, Sik. 
Buffa io Medical, 
rn, of eine and Pharma- 
K. 
Kasbek, ascent of peak of, 308 
Kenda ii, s analysis of Washingtonite of 
snepa 
King, Dr. 3 T., on footprints in the coal 
oe of Penn., 
eed Ws annuaire magnetique of, 
bservations meteorolo- 
giques faits 4 Sribanget 140. 
L. 
Lake ak South Australia, 452. 
Lamont, Dr magnetic observations, at 
Manich, 14. 
e, Jonath: = on eh laws of electric 
conduction in metals, 
on organic Tciapeeits divisible 
flora Rossica, 454. 
Leblanc, W. F., on the air of eye 118. 
on oxide of lead, 1 
ae E. C., on the nthe Oe solar 
exh s, 
y Obi ioe Fi, 
“st ‘entieulae, 71. 
tom. separation of tin from antimony, 
Lewey, M. B., 7,0n WAX, LEX 
Light, | heat a ity ide — 146. 
2 
Ss. 
of, toma ine tism 
iebig’s reasoning on the conten theory, 
‘vetat ation of, 82, 377. 
Litharge in fusing dissolves oxygen 
Lithia, quantitative determination of, "360. 
Lonsd ., remarks on some of his a 
ly described genera of ‘meen eocen 
pee ct ee h 
omis, on the geology of Harpeth 
sarge ‘Tenn, 222, —— a 
Lower green- -sand foss s, 280. 
Lyceum, of Natural Teas. N. Y., annals 
officers of, for 1846, 
Lyell —_ ., letter on the eocene of Ala- 
coal field of 
Alabama, 371. 
M. 
Macropetalicihys rapheidolabis, a new fossil || 
aaron ys rap s, a new fossi 
INDEX. 
Magnetical and meteorological science, re- 
cent progress of, 137. 
observations made 
at ag 138. 
Toronto, 1 
Washington, 143. 
conference held 
at Cambridge, 142 
agne ny researches on the relations of, 
to light, 4 
Ma ri aon of iron by blast-furnaces, 170. 
Manganese, test for, 262. 
Mantell, Dr., new ae of, announced, 149. 
notice of bird’s bones in Weal- 
den, 274. 
ner of iguanodon, 
in the Isle of Wight, en 
Merchantia disjuneta, Lal 
artius, Palmarum gen 
Marque 
103. 
Mastodon, young fey of, 244. 
of New g,N. Y., notice of skel- 
t species, 454, 
rite, M., pa ae the tungstates, 
eton of, ot 9. 
Ma endl magnetic pit of, We 
ure of, 133. 
se 3 ney of “quicksil- 
Merc reurys protosalts of, how affected by the 
alkalie. 
etals, owe ae ‘electric conduction i in, 230. 
Mospins omneee sce iam, niobium and ruthe- 
a 
Masse periods 0: 
pee ae wees on, 
Meteo the Vienna cabinet, 148. 
Meteorolgia a" kept at Marietta, 
AE, 10 and Nov. 13, 
glia on Mt. Vesu- 
vius, 308. 
Meteorology, first report on, by J. P. Espy; 
Mexican fossils, found by M. Claussen, 
Michelotti, characteristic Rhizopodi of the 
supracretaceous deposits, 149. 
Microscopic structure of pane Ute 283. 
thracite coal, 407. 
Migrations in the Pacific Saba: 317, 
Milk of the sr aie 
tree, 29, 
apes: ioteds of—acadioli te, 122; 
calcite, 121; 
iene 119; pie 
vag 120; dveluine edeet with automo- 
; fluids and crystals in to} Opa, 321; 
bary- 
nite nepheline and 
found living in the U. S.,404. 
souri pr Miasiteler! valleys, map of, 
a report on 
Magnetic condition of all matter, 421. 
na Prof. 0. M. , report on astronomical 
atory in Cine. cinnati, 297. 
# 
