AlA 
Locke, Dr. John, ws ng ca dip and in- 
tensity in Ohio 0,1 
Longitude, eryin fas of - arc be- 
tween Armagh and Dublin, 113. 
of City Hall, New York, 113. 
of several places i in Michigan 
Loomis 8, 
on ee dip and 
nio, 397. 
Pro 
intensity in * Ohio. 3 
M.- 
Mackerel shark’s Btedius, 197. 
Magnetic dip eee ntensity, mode of de- 
179. 
termination, 
n Ohio, 157. 
~_— hai — of nba for mu- 
Map, paket ‘of Cornwall and Devon, No 
Mathemnaties and peated section A, Brit- 
ish Asso 
— 
— 
ical science, se 
Association, report 9th meeting, 136. 
Medical science, section E, Britis Asso- 
: Metallic tin, action of on alae of mu- 
* ns riate o' fin, 
“Metals, galvanization of, 119. 
ra mass, description and analysis| 
250. 
observations in November and 
December, ip ae 
er, 1 
838, as observ 
= “a EPhladelphin, a elsewhere, 173 
Meteorology of elevated regions, 102. 
merican eee 9%. 
ee cd observations, 95. 
bservatio t equi 
noxes and sles to be reduced, 95. 
observations at Great ’Ma I- 
vern, 1 
Eng., 109. 
phenomena at Ghats, W. I. 
103. 
Journal, kept at New York 
for 1838-9, 323. 
at St. Johns, N. 
B., and Canton, China, 265. 
at Marietta, 
at Plymouth, 
Ohio, 273. 
Mica used in panties light, 101. 
Minerals and shells presented to N.Y. 
Lyceum Nat. History, Dr. a. 
erhoff, 198, 201. 
Minerals, new -ones ‘imautioned from sh 
INDEX, 
pk a a G., on galvanism in blasting 
my S. - B., on the twilight bow, 389. 
Morton, S. G., his Crania Americans re- 
, letter to Prof. Silliman 
on British Association, 
etter to Prof. Silliman 
on classific ation of rock 
Murchison’s —— nese os 
n geological map of Europe, 
126. 
on a part of Germany, 126. 
N. 
Natural History Society of Boston, pro- 
ceedings of, 
Ne wfoundland, meteorological observa- 
tions at, 265. 
menclature of the stars revised, 94. 
pea on formule for comets, 160. 
oO. 
Observations of prgpete dip and inten- 
in » ood. 
Giecoamer 23 at Cape of Good Hope, 95. 
at Girard College authorized, 
398. 
magnetic, their establishment 
recommended by British Association, 
108. 
Observatory, igs from Prof. Encke on, 
to Prof. Bache, | 
Cirsted’ ptt on tornadoes, 82. 
— tribe, synonymy of eval spe- 
di Osler, 
’ mome eter, 1 
"Mr. F., on indications of his ane- 
03. 
2 
Parasite of the eggs of Geometra verna- 
a, « 
Parker .P., meteoric observations at Can- 
301. 
ton, ‘Aug ust, 1839, 
aving with wood, 136. 
Peat b 
Peltier = ’tornadoes, 401. 
Pendulu wT stmpeneti ng, 274. 
“eae compound, by W. J. 
Frodsham m, 
Perry, Thos. i. on a resisting medium, 
Philosophical (Amer.) Society, proceed- 
ings of, 153, 
Photo enic » drawing, Boe remarks 
on $ proc 
Piotiensedt ts new, fener A by Dr. Dau- 
pe Stone gary on Céteau des Prai- 
sald bel lectures on, by G. Combe, 
‘Physick, Dr. P. S., notice of, 155. 
