INDEX. 479 
oo goniometer eye-piece for,||Rain-falls, Chase, 
Rankine, U. J. a a waves, 473. 
Midway Is. in North Pacific, 380. Reiss, Abeta ties Bs measurements in 
Mineralogy, Nawman n, noticed, 232. Ecuador, 267. 
of Utah, Blake, 216. Resisting medium in space, Hall, 404. 
Mineral silicates in fossils, Hunt, 57. |Respight, L., scintillation of eri 222. 
MINERALS, etc.— |Reynolds, mercurial colloids 
chromite decomposition of, 204; rals-) Richter, new syn esis of wey 
wa <r ee Ulexite, Wink-|| Rockwo od, C. G., motion of a ae by 
ae heat, 177, 
of viens Pte noticed, 390. Hed. . V., time necessary for vision, 
NWN 4 tals of Leyden e connected 
Ne os ag distillation of, 184. Fadi oa © i one ee Skye, 211. 
ar hypothesis, evidence on from Pat 9 
eee acopé)..Kirkuwood Rumford, Count, life of, noticed, 230. 
Nitto trous oxide, salts of, <e 
November meteors, 1871, 470. Ss 
0 0 Sadiler, 8S. P., Iridium compounds, 338. 
BITUARY— Sandstone of the Palisade range, 459. 
Edw. vee any cea Santo es vegetation of. Gabb, 127. 
report, 3 
John awards Hotioak, 389. oe col of volcano of Colima, 
Sir R. I. Murchison, 390. pote, A.,, variation of gravity in Rus- 
J. de Carle Sowerby, 390. sia, 3 383. ae 
Ocean currents, Croll, 140. Scheerer, separation of magnesia from 
Oceanic waters, Atlantic, Carpenter, 208.|| potash and soda, 363. 
Oil-bearing rocks of Ohio, 215. Sea waves, 473. 
Oil-wells of Terre Haute, Ind. 369. Sensorium, time occupied in communi- 
cating impressions to, Mendenha 156. 
P tini, geometrical and infinitesimal 
Packard, A. S., Jr., new Ph lopoda, 108. analysis. noticed, 76. 
bryol "ath Gara ei f 3 pg omg C. 4 gear sands in 8. 
Paragenesis of Copper, a so vs ee 
ee no — Shooting stars of August 10-11 th, ‘227 
| Shoo x 
on oer of November, 1871, 470. 
C.H. F. 
Ph = 5 
ona sands in 8. Carolina, Shep-) 0 other, products af rede notion of 4 of, 158, 
ahaa hing histological rations Silver salts, sensitiveness to " 
by sun- light, 25 sae rR ‘Smith, J. L., composition 
Pla stone of Searsmont, Me., 200. 
Plants *eoseil I Devesiens Dawson, 472. _ geographical oe tion of 
Plattner’ Blowpipe Analysis, noticed, San Gregorio sa gr ete., 335. 
Smith, 8. J dredgings in Lake Superior, 
eslghars mian contributions, 76. 
meteoric 
— sie aud Weather, noticed, 313. 
es, 457. 
Protozoa. 
nual report, 
‘pete ae oo soo ivorng as influencing climate, 64. 
188, 243, 347. « 2 eat. P., eye-piece for micro- 
Q oz bearing of Devonian botany on 
origin 0 
Quacernary, see Geology. ‘Spectroscope for measuring —- 
colored light, ~~ 
of a 
eee & pret st ay" bright 
R 
Rain, artificial production of, sta gic tae, Ot 
& 
