464 
etation, influence of protoxyd of nitro- 
gen on, 
Vermont, report on Geology of, C. B. Adams, 
noticed, 
Verneuil, E. de, review of Geology of Russia, 
Volatile oils of the Cruciferee, 425. 
Voleanic action, Prevost’s views on, 180. 
— dust of He ecla, 
nd nearly ening the the at 398. 
—— peak of 
Levees in the we 
bable submarine, i in China Sea, 273. 
ned cla haste on, 
Volcanoes, cause 
_—, 
Voltaic are, molecular phenomena of, de la 
Rive, 110. 
W. 
alker, S. C., nat atest respecting Le- 
Verrier's planet, 
— . gton, Observations at the NationalOb- 
tory, Was hington, noti 1 8. 
Weir, sea, analyti researches, Forch- 
—, maximu density of pure, 427. 
~¥ wave: ede 49, = 
Wares 0 of sound, refraction and diffraction 
° 
——, sea, water raised by, through valved 
tubes, 449. 
Weather, on foretelling, and on the moon’s 
influence on, Ara, 5% 0, 141, 
Weights, sinnte, mode of making, 4 
ute spheres of gold a ‘ee 
Wheat, development of vegetable matter 
in, Boussin ault, 106. 
— thod of measuring the heights of 
—,  senianenny of, modified, 
of position of, J. D. Dana, ae 
INDEX. 
Winds, remark on cause of general, W. C. 
Redfield, 284. 
Wright, A. H., notices of Koordistan, 347. 
X. 
Xyloidine, 102, 259, 295. 
< 
Yale, J. P. Norton and B. Silliman, Jr, ap- 
pointed to professorships in, 451, 
Z. 
logy. 
Alligator, tracks of, 1 
Animals, hybridi 5 6: 39, 203. 
talis, 436, 
ugubris, 
ophyllide, remarks Fic 14, 
jarlanus, new ge vig 
ha ix annulata, | 
potamus at Siera Leone, 125. 
a nie 125. 
Mastodon, 
Melonites saulsipoes, 124, 
sca, olfactory sense in, ty 
ek 
Shells oak sr Seal in New York, 
Trout of Swedish lakes a salt water spe- 
cies, 316, 
ti , J. D. Dana, |, 
Zoo ‘ue 
, Geographical distribution of, J. 
138, 
—, refraction and diffrac tion of w es of) 
wad TD. 3 were 
Ea Dona, 160. 
—, —, classification of, 337 
ADDITIONAL ERRATA, 
P. 370, 8 lines from bottom, after “ copper,” insert “and nitric acid.” 
P, 371, in note, for * Aq” ghee ormula, rea ad “Ag.” 
P. 376, 9 lines from bottom, for “ fine,’ 
’ read “ fire.’ 
