468 
Turkey, new, of Mexico, xxii, 139. 
ber ng embryology of, Agassiz, xxv, 342. 
—- le, C. W., discovery of a comet, xxx, 
2. 
obtains the comet prize, xxviii, 120, 
Twining, A. C., aurora of — xxviii, 34. 
on occultations by the moon and 
arwemere and experiments. on — and 
marnitude xvi,15. 
pbeoting stars of August, 1930, xXviii, 
ronda, disposition of force in paramag- 
netic and diamagnetic bodies, xxiv, 264. 
_— of the N. Pacific, W. C. Redfield, 
Tyssouski, ody SS of Rose on alu- 
minum, xxi, l 
Uz 
Feet on aurora of 1859, xxx, 340. 
oes nt 
Unio, on w, T. A. Conrad, xxi, 172. 
Unite ed States, statistics of Flora of Ny A, 
Unity of the human race, xxv, 328. 
Universal Exposition, Paris, xxi, 256, 261. 
Urals, notes on, xxv, 3 
nium, on metallic, Pel igot, xxi, 418 
trea from oe substances, : xxvi,97. 
formation of by oxydation of albumin- 
ous matters pS 
in animal economy, xxiii, 
Urine, on PERS sugar of, xxi, 312. 
origin of, i, 440. 
Vegetable individual, In ie sis relation to 
, O4. 
Xxx, 269. 
Ververy on loss of light by A shades, 
Vibrations ws Holyoke waterfall, Snell, 
de St, photo-chem. researches, 
Vienna geological transactions, xxii, one 
entific publications, xxi, 303, 
Vilmorin on lizarin, xxviii, 277. 
sur vAmetioraton i Plantes, etc.,| 
Hing? Ed 
fats "Bogen "a ne ye 263. te 
xr, oF ma 178, 489, 
Volcanic action 
on Hawaii, xxiii, 435. 
— “cul, 2 of, i ge a Olay, 
cones. ormation of, Lyell, xxvi, 21 
cers of Java, vegetatio on sane 
Dcices ena lava: G.P. Serope, xxiv,217. 
vane of Antuco, Chili, noticed, arias | 
th acids, xxviii, 145. 
i, 878. Warr 
INDEX, VOLS. XXI—XXxX. 
Volcano of ang condition of, 7. Coan, 
siete 100, xx 
f M. ‘Ta, exuption o ES Coan, xxi, 
198, 237, xxii, 240, xx 
. D. annie 1 Ot, 
RC. Haskell, cavity 66, 284, 
301. 
Pichincha G. G. Moreno, xxvi, 408. 
on ioe of California and Oregon, xxvi, 
126. 
conical form of, , Lyell, xxviii, 221. 
eruption of Mount Ho od, xxviii, 448 
extinct, of Australia, xxv, 289. 
Tone of California, J. A. Veatch, xxvi, 
Serope ii, 346. 
of + adicng italy, Deville, xxii, 272. 
Voltaic, see Galva 
Voyage of dimmrmcest "Austrian, xxiv, 260. 
Wagner's visit to the Cordilleras, xxviii, 
3. 
Tigi, Gees origin of flint in chalk, 
447. 
Warner, J. tek editor noticed, 
xxiv, 
see Err vol. xx 
Warrington, re effect ale excess of heat on 
the aquarium, xxi 
Warren, G. K., explorations in the Dacota 
country, xxiv, 300. 
map, Pacific R. R. Reports, xxvii, 380. 
memoir to aeeeyeny a map of the 
., xxviii, 41 
Report of vi Si n Nebraska 
| Water, 
filtration of, through sand, Witt, xxiv, 
ee 
or 
medium by chic saga the i 
ue rg a ea enter plants, 
Waters of the Caspian, density aie et aah 
of the ome nes. analysis of, xxii, 301. 
xxii 
» Witt, xxi 
Weaterfll ‘of Holyoke, vibrations, Snell, 
¢, , on aurora of 1859, 
of Japan ea earthquake 
Wedach, Chloris A 01 
n the Ditiessess, noticed, XXv, 
ighing -< of moist’ precipitates, R.. 
layer, XXix, : 
ox wt small’ portions of matter, 4. 
cMayer, xxv, 39. 
Wei D. F, animal psychology, — 
heat, developed in, by agitation, X5V, — 
~— ae 
ge eg ete., of ei alt, 
xxx, 355. — 
ps ioages: on the — 
r. 
3 
