408 
Phlox glutinosa, a new plant, 177. 
Phosphate of lime in the Virginia mete- 
oric stone, 102. 
Plants of New England, 27. 
Poa modesta, a botanical species, 45. 
Primary formations and igneous rocks, 
analogies between, 104, 
Pseudo-volcanoes of the Upper Mis- 
souri, 154. 
Pteris Alabamensis, a new plant, 177. 
R. 
Radicals in the amphide salts, their ex- 
istence refuted, 52, 247. 
Rain-drops, fossil impressions of, 315, 
394. 
Redfield, W. C., on fishes and other fos- 
sil memorials in the new red sandstone 
of New Jersey, 314. 
on the effects of polar 
currents, 326. 
on tides and the prevail- 
ing currents of the ocean and atmos- 
phere, 293. 
Reizet’s method of finding the nitrogen 
in organic compounds, 267. 
Rogers, H. D., on crescent-formed dykes 
of trap, 334. 
on hydrated minerals and 
antediluvian temperatures, 147. 
theory. of earthquake mo- 
tion, 341. 
Rogers, W. B., on the limits of the in- 
fusorial stratum, in Virginia, 313. 
Roots, Greek verbal, in English, 284. 
Rotary action of storms, 65. 
Ruggles, D., on tides in the North Amer- 
ican lakes, 18. 
S. 
Salts, amphide, existence of radicals in 
disproved, 52, 247. 
Scutellaria arguta, a new plant, 175. 
Shells, new fresh-water and land, 401. 
Shepard, C. U., on phosphate of lime in 
the Virginia meteoric stone, 102. 
Sigillaria, discovery of a large species, 
403. 
Siliceous tubes (Fulgurites) formed in 
the earth, 220. 
Smilax grandifolia, a new plant, 171. 
Smith, J. L., on a new instrument for es- 
timating the carbonate of lime in eal- 
careous substances, 262. 
on Varrentrapp and Will’s 
method of finding nitrogen in organic 
compounds, 267. 
Soils, organic matters of, 337, 
Storer, D. H., notice of Dr. Dekay’s Re- 
port on the Fishes of New York, 275. 
on a new species of Tor- 
pedo, 165. 
Storms, rotary action of, 65, 307. 
Streptopus maculatus, a new plant, 170. 
INDEX. 
Strong, T., on the differential calculus, 
and a new investigation of Taylor’s 
theorem, 269. 
Subsidence, areas of in the Pacific, 131. 
Symbols, proposed geological, 352. 
a 
Taylor’s theorem, investigation of, 272. 
Teeth of Lepidostei, microscopic struc- 
ture of, 359. 
their analogy with 
those of the Labyrinthodonts, 361. 
Telegraph, electro-magnetic, experi- 
ments with, 390. 
Temperature limiting the distribution of 
corals, 130. 
Temperatures, antediluvian, 147. 
Thalictrum debile, a new plant, 175. 
Tides in the North American lakes, 18. 
Mr. Redfield’s remarks on, 294. 
Torpedo occidentalis, anew species, 165. 
Tracy, C., rotary action of storms, 65. 
Trap, crescent-formed dykes of, 334. 
Trees, fossil, in the coal strata of Nova 
Scotia, 353. 
Tuckerman, E., on some plants of New 
England, 27. 
his Enumeration of the 
Carices noticed, 216. 
V. 
Vaccinium hirsutum, a new plant, 175. 
Varrentrapp and Will’s method of esti- 
mating the nitrogen in organic com- 
pounds, 267. 
Vibrating dams, 363. 
Vogt’s Embryologie des Salmones noti- 
ced, 211. 
W. 
Walker, S. C., on the great comet of 
1843, 188. 
Wave lines, markings of, 148. 
West, C. E., on siliceous tubes (Fulgu- 
rites) formed in the earth, 220. 
Whittlesey, C., on elevations in Ohio, 
d&c., 12. 
Will and Varrentrapp on nitrogen in or- 
ganic compounds, 267. 
Winds, calorific theory of, controverted, 
303. 
Wires, conducting power of, 392. 
Wyman, J., bibliographical notices, 211, 
397, 
description of a blind fish 
from Kentucky, 94. 
on the teeth of the Lepidos- 
tei, and their analogies with those of 
the Labyrinthodonts, 359. 
Z. 
Zizia pinnatifida, a new species, 175. 
Zoology, nomenclature of, 1. 
of New York, Dr. Dekay’s Re- 
port on, noticed, 397. 
