406 
R. 
matey cars, rapidity of motion in, 197. 
ways constructed with cast iron 
sleepers, 
n, on nr quantities collected, 
by the g 
quantity . different parts of the 
earth, : 
on, Mr., o 
Raws n fires in. —— 316. 
Raleigh’s ee of 1835, 210 
he 
ce dip and intensity in Ireland, 
armature engine, 263. 
. C., law of storms, 182, 
Reci rocatin 
Redfield, 
276. 
n the courses “ ee 
and t foons of China sea, 20 
—_— ol., on Mr. Rediield’s law of 
eg 
n storms noticed, 
s, 167, 223, 323. 
Respi ration, M. Sens on, 198. 
Riddell, Dr., new mode of sean: 
nts, 
pn 
on electro magnetic engine, 
343. 
Eatveon,. rein in transition, 248. 
i substitul by beromale r, 294. 
new Tovalitics of 
inion on age of gray- 
Paras 
mineral wat Avon, 188. 
ce Satetps on, ear Liverpool, 
of New Jersey containing fos- 
sil fish, 192. 
peculiar arene? of, 249. 
Sang, Mr., ote a dity of motion in rail- 
Seankaaten commercial carbonate of am- 
“nitrate ailver not blackened by 
“sun light, 298. 
Schweigger Seidel, his general electric 
‘formula, 356. 
ie in Vermo: 
s, new s] 
I 7 T 208. 
nt, 390. 
pecies a4 ‘described by 
» © o, notice of a new min- 
es , (danburite,) 137. 
INDEX. 
onepard) ten” -U., 2d part of lett by 
bie without masts, 332. 
>i stars, 167, 223, 323, 2% 368 
Siberia, frozen ground of, 
Silurian and transition system, 243. 
Smith, Henry, letter to Prof’ Silliman, 
336. 
Junius, letters on steam naviga- 
tion, % ee 
variation in quantity of 
rain in "different parts of the earth, 
295. 
H. L., account of his telescope, 
174, note. 
Sopwith’ s mode of constructing secre- 
taires, 
Sowerby, on Encrinus moniliformis, 
Specific avity of several elements 
298. 
echoes pater of wood, 144. 
itish Associ- 
— section of, in Bri 
Statistical tables, oro 
team vigation, letters on, 160, 161, 
332, 398 
boilers, new construction of, 318. 
Sica instrument for illustrating 
binocular vision, 295, 
ote on the law of, 1 
sidered before ie "British 
year 276. 
Col. W. Reid’s book on, 182. 
of, 222. 
natural ge 
Storms, 
of Euro 
Storm in New amps in 1821, 233 
evens . n Ardea alba, 311. 
ohn’s ieee, seo rks on, 
anes, ee analysis of, 298. 
0! , 298, 
|| Sulphur springs ‘in Florida, 51. 
ity of, 298. 
Surveying and “exploring expedition to 
uth 
Substitute for the mountain barometer, 
294. 
'F. 
Tanning, new process for, 303. 
ar, Judge, iacestian of new 
Taylor, W. Ww. c. , change of population in 
d, 315. 
Temperature o - the interior of the earth, 
of deep mines, 297. 
produced by ev 
solid carbonic onde 347, 
of wells and ' springs at - 
ca uname from earth’s surface 
in different eles By 
ion of 
: —_— 240. 
