CONTENTS. Vv 
NUMBER XXXIX. 
P 
Art. XVII.—On the great Lava-flood of the West, and on 
the structure and Age of the Cascade Mountains ; by 
Josurn Le Conte, .o0. 2000 ea 167 
XVII.—Analytical Notices ; by Samuet P. Saprn eee, 
XIX.—On the oo of bisonele and Ether } “ate Ozone; 
by. A. W. 
XX.--Notes on some of the Fossils figured in the recently- 
issued Fifth lee of the Illinois State Geological Re- 
port; by Ff, B,. Merny vos JA loos sue a 189 
XXI.—On the connection between Sigg ers Molecular 
rg and Physiological Action; by James Biakx,.- 193 
a. the Dissociation of certain Componnds at very 
Temperatures; by A. R. Lamps, 2. 2252522255 12. «8 197 
xxi —On the Influence of Color me ueees by Light ; 
enc ten Gees, S 200 
XXIV. Note on on Lipnirs ‘Beds and their Under-clays; by 
RED, oo. 555525 ee Vee ee be ces 208 
XXxV. —On aie Deep-Sea Dredging operations in the Gulf 
of St. Lawrence; by J. F. WarrEaveEs, ---...-.--. .-- 210 
XXVI.—Notice of a new Fossil oe eons from the Coal Meas- 
ures of Iinoia; by O. Hanemi, i vice- ee 219 
XXVII.—On some Crystals of ta by S. P. SHarpies,... 223 
Appenpix.—X X VIIL—Notice of New Equine Mammals from 
the Tertiary Formation; by O. C. Marsn, -...-.------ 247 
SCIENTIFIC INTELLIGENCE. 
Physics.—On the icp ropa — BarBieR: On Nitroanthra- 
cene tay its derivatives, ScHMIDT?, ew dei of eae EMMER- 
G: On an Isomer of yf oa yak eerie 25.— The Horizontal 
Pendulum, ZOLLNER, 226. —Specific heat of too un a pies volume and 
under constant pressure, AMAGAT, 227.—Relative apse of the constituent 
rays of Maske py s of light, Ts NIN, 228.—The Selection and Nomencla- 
29. 
Geol Natural History.—Some of the Geological views of Hutton, 232.—On 
the ideachy & nd Geclegy of Santo Domingo, WM. M. Gass, 234.—Trachytie 
oe dolore i odks in alternations in the Puebla Range of mountains, Nevada, 
KE, 235.—Bulletin it the U. S. Geological and Geogra urvey 
of the Worditities 236.—Abrasions of the ee Shores of as ortheast Amer- 
ica, by Geo. Davipson: Mikroge ologische Studien itber das kl Leben der 
0. G. Sinataan RG: Osteaodide or radeon 
Entomostraca, T. Rupert Jones: Revue de Géologie pour les Années, 1870 et 
1871, — and revimcgehe Reports on the ns eee of ee State 
of Mi y G. ©. Broapueap, F. B. and B. SHUMA 
237 ons Nickeliferous poke from Frazer River, by JaMes BLA Kjer 
238.—Tschermakite, a new feldspar : Sphzeraleea ace cerifolia : Tevcioes of = 
anists, 239.—Localization of the Functions in the Brain, FERRIER, 240. 
oh of a new Planet, by C. H. F. PEerers: Astronomical Soci- 
ety of London emy of Sciences at Paris, 244. oo 
Intelligence.— Direction o: Pfoenatecn grtpge Mud, by F. k : 
Miscellaneous Scienti mes 
Goutpine: The New e csieeat by Jostan P. Cooke, Jr., 245.—Annual _ 
port upon the Geographical and Geological Surveys and of 
Sale eridian, b anegingetebeonsnep The Cincinnati Cnciona Grado 
Science : rith with Insects, by A. 8. Packanp, Jr., 246. 
