cOoP 5 
Conrad, T. A., on the tertiary of 
the Atlantic coast, xxviii, 104, 
280.f 
, new fresh water shells of 
Alabama, Tennessee, &c., xxv, 
338.f 
, on the features of the transi- 
tion or Silurian system, xxxv, 243, 
, on the condition and charac- 
ter of organic life in the transi- 
tion epoch, xxxvi, 12. 
, characteristic fossils of the 
N. York rocks, xxxvi, 14. 
, on the Silurian strata, and the 
characteristic fossils, xxxviil, 86. 
, subdivision of the Silurian 
system in N. York, xlii, 229. 
, Calymene senaria, xlii, 230. 
Conservatory at Boston, destruction 
of, by fire, xlvi, 214. 
Continents, mean height above the 
sea, Humboldt, xlix, 397. 
Conwell, C. C., chemical experi- 
ments on tobacco, xvii, 369. 
small apertures, xx, 350. 
Conybeare and Phillips, outlines of 
the geology of England and 
Wales, vii, 203. 
Cooking apparatus of Lemare, vi, 
99 
Cooling of the earth, a dynamical 
cause in geology, W. W. Mather, 
xlix, 288. 
Cooley, D., floral calendar, ii, 254. 
Cooper, report on the fossil bones 
of Big Bone Lick, xx, 370. 
Cooper, T., on the tests for arsenic, 
iv, 155. 
, disclaimer of, with regard to a 
fossil described by A. Eaton, xx, 
413. 
, on volcanoes and volcanic 
substances, iv, 205. 
Cooper’s rotative piston, xvi, 313.f 
Copaiva balsam, a new preparation 
of, by G. W. Carpenter, xvi, 40. 
Copal, notice of, xliv, 212. 
, Solution of, aided by cam- 
phor, xiii, 174. 
, on the passage of light through, 
varnish, Berzelius, xvii, 1'75. 
Y 
( Cc OP 
Copernicus, monument to, at War- 
saw, iv, 387. 
Coprolites, in Connecticut valley, 
i. Hitchcock, x\vii, 113, 308.f 
of birds, analysis of, S. L. 
Dana, xlviii, 46. 
Copper, atomic weight of, xlviil, 
402. 
, amount produced in Great 
Britain and Ireland, for the year 
ending June 30, 1822, viii, 390. 
, determination of, in a binox- 
ide salt, xlvii, 193. 
, partial reduction of the binox- 
ide of, by heat, xlviii, 184. 
, hydride of, A. Wurtz, xlviii, 
185. 
, silvering of, xxiii, 386. 
, metallic, galvanic formation 
of, in a mineral vein, xxxiv, 44. 
, protoxide of, xxii, 353. 
, white, artificial, vill, 380. 
——.,, Witting’s test for, ix, 201. 
, tendency of iron to protect, 
when exposed to sea-water, xxv, 
203.f 
, foliaceous, of Vesuvius, xi, 
267. 
—— and potash, sulphate of, xx, 
195. 
, native, in Connecticut, i, 55 ; 
vi, 280; xxxiii, 160. 
-, , connection with trap 
in Connecticut and Michigan, 
xlvii, 132. 
4 , in drift, Massachusetts, 
E. Hitchcock, x\v, 331. 
, , in N. Jersey, Summer- 
ville mine, v, 401; xxxvi, 107. 
— sla Ce Beck xy, 
y] 
301. 
>) 
‘ , of Michigan,D. Hough- 
ton, xli, 185; xlv, 331, 332. 
Wee off fc Lake 
Superior, METAR Schoolcraft, ill, 
201.f 
; , presented 
Yale College, xxvii, 381. 
‘ _ and silver, of Lake 
Superior, C. T. Jackson, xlix, 
81. 
to 
