ROG 
Rogers, H. D., origin of the Appa- 
lachian coal strata, xliii, 178. 
, Structure of the Appalachian 
chain, xliil, 177; xliv, 359. 
, scratches, diluvial, in Penn- 
sylvania, xliii, 180. 
platinum, xxxix, 369. 
Rogers, J. B., and J. Green, ex- 
periments with the elementary 
voltaic battery, xxvili, 33. 
Rogers, J. B., dolomite, a double 
salt, xli, 172. 
, analysis of meteoric iron, 
xliil, 169. 
Rogers, Moses, Savannah steamer 
the first which crossed the At-, 
lantic, commanded by, xxxviii, 
155. 
at Philadelphia, by the American 
Philosophical Society, xl, 34. 
Rogers, R. E., on limestone) xli, 
171. 
~——-, new instruments and process- 
es for the analysis of the carbon- 
ates, xlvi, 346.£ 
Rogers, S., letters on the manu- 
facture of iron, xlii, 380. 
Rogers, W. B. and H. D., experi- 
mental enquiry into some of the 
laws of the elementary voltaic 
battery, xxvii, 39.f 
Rogers, W. B., analyses of shells, 
Xxvi, 36. 
, apparatus for analyzing marl 
and carbonates, xxvii, 299! ; xlvi, 
346! 
,on bimalate of lime in su- 
mach, xxvii, 294. 
, self-filling syphon, xxvii, 
302.f 
, chlorine in meteoric iron, 
xliti, 169. 
, fossil foot-marks, xliii, 1738. 
, ores of zinc and lead in Vir- 
ginia, xlili, 169. 
, oxide of tin in Virginia, xliii, 
168. 
, on subterranean temperature, 
xliti, 176. 
26 
221 
, a new compound containing 
——, log-book of, preserved 
ROS 
Rogers, W. B., on the dip of strata, 
xlili, 171. 
——, elevation and flexure of strata, 
theory of, xliv, 360, 
, proofs of diluvial agency, 
xlili, 181. 
, Infusorial stratum, near Rich- 
mond, Va., xlv, 313. 
b) 
xlvi, 141. 
, Virginia tertiary formations, 
xxxviii, 183. 
, coal of eastern Virginia, of 
the age of the lower oolite, xliii, 
175. 
, natural coke, or porous an- 
thracite of eastern Virginia, xltil, 
175. 
, connection of thermal springs 
with anticlinal axes and faults, 
xiii, 176. 
, Structure of the Appalachian 
chain, xlili, 177; xliv, 359. 
, on chemical equivalents,xlvii, 
105. 
, geological Report on Virgin- 
ia, notice of, xxxil, 192; xxxvii, 
380. 
Roma, Campagna di, malaria of, 
xxil, 336. 
, Manuscripts at, v, 885. 
, clergy and population of, ix, 
6. 
—— ——, in 
Maryland, 
Roman aqueducts, xix, 389. 
Romanzow’s expedition across Beh- 
ring’s Straits, ii, 345. 
Roofs of pasteboard, xxiv, 381. 
Roofing with zinc, A. Caswell, xxxi, 
248. 
—— ibid, L. D. Gale, xxxii, 315. 
slate, of Lebanon, N. Y., vy, 
ee 
in Vermont, v, 272. 
Ropes, on the various vegetable ma- 
terials for, xxi, 27; xxv, 330. 
, material for, from the Rose 
of Sharon, xxviii, 371. 
, from Manilla hemp, xli, 200.f 
, strengthened by a solution of 
glue with oak bark, xxvi, 186. 
Rosaic acid in urine, xvii, 385. 
