vi CONTENTS. 
NUMBER XL. 
Art. XXITX.—On the great Lava-flood of the Northwes 
and on _ eaerecat and Age of the Cascade Movseees : 
by Josepn LEeContr 259 
XXX, Peeaiielien of Coal Seams; by J. 8. Newserry,.-. 367 
XXXI.—Notes on some of the Fossils figured in the recently- 
issued Fifth volume of the Illinois State seated Re- 
port; by F. EEK, oes wae Spies. 4 SOS 
XXXIL—Laboratory Notes; by M. Cars y Le __t ens _ 376 
XX XIII.—The a riferous Gc Deposit of Gold Bluffs; by 
A. W. Cua 
XXXIV. = Notice of Recent Earthquakes.—No. 4; , by C G. 
Rock Woot 08 ..55 65 has se eee eee 384 
ok "Geographical and Geological Explorations and Sur- 
s West of the 100th Meridian; Gro. M. WHEELER, - 388 
XXX L—On a Mass of Meteoric Iron of Howard Co., Ind. ; 
ee Tit WEENCE PIE, Oo ae 391 
XXX _—On the Hamilton in Ohio; by N. H. WincHeEt1, 395 
XXXVIII.—On the Lignites and Plant-Beds of Western 
Amences: by J. S. Neweerey, 2.2. 2 ee 399 
XIX.—Results of recent Dredging Expeditions on the 
Coast of New England. No. 6; by A. E. Verrini,.-.- 405° 
SCIENTIFIC INTELLIGENCE. 
and Physics.—On the Variations of Chemical Activity in the Solar 
sewer Voge, 414.—On Plateau’s Glycerie liquid, TrrquEM, 415.—On the 
Tl sotmged of Nitric Oxide, N.O,;, BeRTHELOT, 416 --On Ammonium nitrite, 
BERTHELOT: Mechanical Equivalent of Heat, H. Serrano Y. oo pe 4] ee 
Distribution of magnetism in soft i > Jam: Electro- o-torsion, GEO. GORE 
—Phrsiology of Flight, itey 4 —The Vermiculites: their Crystallographic 
and Chemical relations to the Mica, ete ; by Jostau ”. CooKE, Jr., 420 
Geology and Natural History.—Eozoon Canadense not a Foraminifer or Cajoandous 
Rhizopod secretion, H. J. CARTER, 437..—-Note on the Geology of Costa Rica, 
: Mines an 
Mining in the States and Territories West of the Rocky Mo ountaing, ROSSITER 
W. Raymonp: Mineralogy and Chemist ga Original Poe sdoges y J. Law- 
KENCE SMITH, 439. Se in Ferns, WM. G. Far : Sarracenias 
as Hiy-Catchers —Hooker’s = of British saa Pachystigna —— 
Abed : Woodsia Tvensis why so ed? FoURNIE 
g the nature of Lichenes ae their Gonidia: Villars ee aoa 
with parallel-veined leaves, DECAI 3.—On the’ Origin a Metamorphoses 
; by JouN Luspock: Man and Apes; by St. GEORGE MINART: The 
omparative Anatomy of the Domesticated Animals; by A. oe rae 
Structure of Animal Life; by L. Agassiz, er spp Insects ; & 
meen: Jr.: Ophi hiuridee ora Astrophytidee T. LyM Transactions of Tike 
Pecks ecticut Academy of Arts and Sciences: pale genus ; iets Meek, 
i ance nsec ee Meteorological Observations, ahs - New Comet 
Tae Planet: Engravings from Harvard College Observatory, 44 
Miscellaneous Scientific Intelligence.—Agassiz Memorial, 446.—Cye of Magnetic 
declination, Scuort, 448.—Relation between the oe of certain Bi rds and their 
r 
Ae 
WELL: Dunglison’s 3 Medical pieces: &e., 450.— Obitwary.—Prof. Dh hee 
-Quételet: Madler, 450. 
