INDEX. 
Penhallow, D. P., herbage of permanent 
meadow, 395. 
digg R, Parser ic er — 
Peters, H. F, discovery a 
pena, 236. 
a evolution of the trot- 
~ GEO. 
n C aes , Bu illetin 
Prout’s - ae euanatin A "6S 
Pyroxene, triclinic, Cross, 76. 
R 
sonst double, in some isometric 
Report is Rio Negro aca 410. 
LOGICAL 
Richthofen, BF, he China, ‘80, 152. 
Rocks, ae ae 
Rockwood, C. G., Fasten ‘iibtcditie 
the Ischian Rreeaidag ats he 
wee Ai pages ste for op- 
tion Address, 325. 
nee Sten oande on concave grat- 
Rl, Survey in Georgia, att. 
Saponin, 239. 
Saxe-Coburg-Gotha, Travels of Princes 
f, 247. 
Seismometer, n ew, 3 
Selenium cell, new form of, Fritts, 465. 
iy ee orice iron from 
Pe 
um gem 8 in India, 
Sheridan, *y (3 "xplorations i in  Wyom: 
ng, © 
Semmes’ 1 theo the sun, 67, 146. 
ae bevics. peor sional papers, 490, 
Sound, intensity ¢ a 7 rh 
Spectra, infra r 
co 8 ors 
Spectroscopic votes Young, 3 
er, F, eeocri 
mieal contribu’ utions, 
, W. L., Backhouse’s physiological | 
Stevens 
optics, 399. 
495 
sulphides, es juagenca of Py, Prenearys 238. 
a Aeroter 
Sun seks ntial of, ie 
" oxygen ee in spectrum, telluric, 
ATT. 
Siemens’ theory of the, 67, 146. 
spectroscopic notes on, Young, 883; 
x 
Tellurium sec new, 237, 
reactions of, 402. 
ashes 1 coraaA a e GEO 
bridge, J., Sista gov i 67, 146, 
is 406, 416. 
Trumbull, J. i, tte iaaeh Origin of 
Cultivated Plants, 
Tuning forks, ea ttn on, Wead, 177. 
Turmeric, chemistry of, 141. 
U 
Upham, W., Lake Agassiz, 327. 
Vv 
te bse are tiboage AM 144, 
msity apparatus 
Vasey G., Grasses of nd United States, 
322. 
Veins, genesisof metalliferous, Le Conte, 1. 
Vesta, a bai study ? Harrington 461. 
Voleanoes, see under (3 EOLOG 
Vortennsens theory, Croll, 418, 
WwW 
Lge G;, or gp tila es 365. 
meteorites of sag 
me 
Water. sai heat ot Lie big, 5 
ys intensity of sound, 177. 
Weight, correction of, for buoyancy of 
the atmosphere, ooke, 38. 
aot C. A., burning of lignite in situ, 
* commingling of types in the Lara- 
mie group, 
