MIT 
Mississippi valley, L. Bringier, 
lead mines, iii, 24; iron ores, 26; 
cove of Wachitta, 26, 28°; alum 
slate, 28; salt, sandhills, 27; hot 
springs of Wachitta, 29; Indians, 
30; mounds, 36. 
—-and the lakes, J. B. 
Gibson, xxix, 201. 
, H. King, xlvii, 128. 
, lower partof, R. Nutt, 
ee 
——= 
xxill, 49. 
, mineralogy and geology of, 
E. Cornelius, i, 317. 
——, Upper, polythalamia of, J. 
W. Bailey, xli, 400. 
river, elevation of banks of, 
1811, F. C. Usher, xxxi, 294.f 
, velocity of, vil, 174. 
, headwaters, botany of, 
D. B. Douglass and J. Torrey, 
lv, 56. 
waters, 
vill, 396. 
Missouri, lead region of, H. R. 
Schoolcraft, iii, 248. 
i , ores, Troostand 
Lesueur, xii, 379. 
——, J. N. Nicollet, 
——— 
—_—_—— 
medical effects of, 
—— 
P) 
xlv, 340. 
>» — — J. T. Hodge, 
xliii, 35.f 
3 mine of la Motte, ore 
not argentiferous, xlii, 64. 
, Native carbonate of lead in, 
xil, 379. 
cobalt ores, xii, 378. 
, cretaceous formation of, J. 
IN. Nicollet, xli, 180; xlv, 153. 
, Indian mounds or fortifica- 
tions in, ill, 36. 
; ——,R. C. Taylor, 
xxxiv, 89. 
, contributions to the botany of, 
PC e Bech.) X_ 251.4) Xiaae Ol 
xiv, 112. 
Mitchell, E., on the effect of quan- 
tity of matter in modifying the 
force of attraction, xvi, 234. 
, on the geology of the gold 
region of North Carolina, xvi, 
lf 
169 
MOL 
Mitchell, E., North Carolina, char- 
acter and origin of the low coun- 
try of, xiii, 336. 
, on the proximate causes of 
winds and storms, xix, 248.f 
——.,, Protogeea of Leibnitz, xx, 56. 
, on storms and meteorological 
observations, xx, 361. 
, on Welther’s tube of safety, 
xvii, 345.! 
Mitchell, J., on the ignis fatuus, 
xvi, 246. 
Mitchell, J. K., on the liquefaction 
and solidification of carbonic acid, 
xxxv, 346.f 
Mitchell, T. D., carbonic oxide ob- 
tained free from carbonic acid, 
xxv, 344. 
Mitchell, Wm., on the tails of com- 
ets, XXXvill, 85; xl, 59. 
, magnetic dip at Nantucket, 
xlvi, 157. 
Mitchill, S. L., conditions of the 
growth of plants on living ani- 
mals, xil, 21. 
, on the Mus bursarius or pouch- 
ed rat, of Canada, iv, 188. 
, on the Proteus of the N. A. 
Lakes, iv, 181. 
, on a group of polyps, v, 46. 
, a new Raja, ix, 290. 
——, Zeus crinitus, xi, 144.f 
, Spoonbill sturgeon, xii, 201.f 
, new reptiles of North Amer- 
ica, vil, 63. 
, on the eatable clam of New 
York, x, 287. 
, facts showing that two-headed 
snakes are monsters, x, 48. 
, history of sea-serpentism, xv, 
351. 
, Notice of his edition of Cu- 
vier’s essay on the theory of the 
earth, 1, 68. 
, obituary notice of, xxvii, 149. 
Mitscherlich, formation of specular 
iron about volcanoes, xxxvi, 237. 
, on fuming nitric acid, xx, 185. 
Mohs, F., obituary notice of, xl, 
220. 
Molasses from the potato, xxi, 93. 
