CONTENLS. vii 
tents of Fourteen ie co eget ier eo pe caine coh Pompeii, 331.— 
Sea-Serpents: Bass culture in Eng h Association, 332.— Obituary. 
—Sir Andrew Smith : Delaunay, Per 
‘DIX. 
Euclid’s Doctrine of Parallels; he - C. eon 333 
Notice of some Remarkable Fossil Mammals; by O. C. MaRsH 343 
Notice of a New and pater sicar Fossil Bird ; by 0. C. MaRsH, 344 
NUMBER XXII. 
P 
Arr. XL.—A Theory of the Formation of the great Features yi 
of the Earth’s Surface; by Josepn LeConre, --------- 345 
XLL—Catalogue of bright ‘Lines in the Spectrum ‘of the Solar 
Atneepiers: bY KR. AD TOUNG, oo... ees soe 356 
XLIT.—On the Quartzite, “Limestone and associated rocks of 
the vicinity of “ghee reat tate Mass. With a map, on 
Plate TV ¢ Dy games D270 k, 3) 362 
LUI.—On the iahare ae darsiion of the discharge of a 
regi Jar connected with an induction coil; by OapEN 
Part II, - Nia aware wig 371 
XUIW. a ‘thes Allegheny System of Electric Time Signals; : 
by 8 ARGEBY,'¢ 00s cing 25 eee 77 
XLV. be ot a piativod “of detecting the phases of vibration in 
the air surrounding a sounding body, and thereby meas- 
uring directly in the vibrating air the length of its waves 
and satan. the form of its wave-surface; by ALF 
M. May 387 
XLVI. Syren = Evolution ‘of Structure in 1 Seedlings ; by 
DORN ©. DG ee os spews 
XLVIL. eRajoinder' te Prof. as — iy a ‘Note on a 
Question of Prio Pe wy Be iainge 5 ee 
VIitt. 
XL L — Elements wy fatiets nis or “(193); a A 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics.—On the Chemical Efficiency of ee = Dewar, 401. 
—On the Law of Extraordinary Refraction in Iceland Spar, G. G. Stoxss, 404 
—On a new Galvanic Pile, of economic construction, M. ee 
Geology and a al History.—Discovery of Fossil Quadrumana in the Eocene of 
Wyoming, 0. C. Marsu, 405.—Note orn a new genus of Darniveees from the 
Tertiary of Wyoming, O. C. MaRsH: Notice of a New —— from the Oreta- 
ceous, O. C. MarsH: Recent Eruption of Mauna Loa, T. Coan; 40 oe of 
Mauna Loa to the scene of the Eruption, 407.—Volcanic Energy, an ttempt to 
develop its true origin and cosmical relations, R. MALLET, 409 e aalvent action 
and Belgium, J. PRESTWICH, 413.— t rvations in Bermudas, 
M. Jo 416.—His he names Cam and camige in Geology, T. 8. 
Hunt, 416.—Report of the Geological Survey of the State of New ew Hampshire, 
©. H. Hircucock, 417.—Memorie per servire alla Daborisions della Carta Geo- 
logica a'Ttalia On the Occurrence ¢ Native Sulphuric Aci Eastern ' 
418.—Analysis 0 mpa North Carolina, J. B 
ADGER Leite: in re ber of Fichtelite, J. W. 
MALLET, 419.—Botanical a and Intelligence, 420.—A Handbook of 
Chemical Technology, R. Wagner: On Beavers and Beaver Dams in Mississippi, 
J. SHELTON, 422. 
