Vili CONTENTS. 
NUMBER LXXXIV. 
Art. XLVIII.—On the —— Motion of the Trifid Nebula ; 
y Epwarp 8. Hotpen, bine sadn d ap iw ee Be 
XLIX.—The Northern Part of the Connecticut Valley in eee 
Champlain and Terrace Periods; by Warren Upuam,_ 459 
L. <b oe arry of _ new § gree of Fishes; by G. Brown 
Goops and Tarieron .H.. Bran, Jososi Antic ek. 
LI. —Volametric Desisreuiarstinas by Chinois Acid; by C. W. 
LIL. woe Gries of Extinct Reptilia (Stegosauria) from the 
Jurassic of the Rocky Mountains; by O. C. Marsu,.--- 51 
LUI.—Notice of new Dinosaurian Reptiles from the Jurassic 
sormasion yy bY. CME ARNG, © O25. Chak ees ooo 
SCIENTIFIC INTELLIGENCE. 
Chemistry and P —On the Gases enclosed in eh Tuomas, 481.—On the 
oe Totween Tanolable Carbonates and Soluble Oxalates, Watson SMITH: 
On the new Metal Davyum, 482.—Upon Metalacetyl- gr ethers, CoNRAD: 
Phyllic acid, peters from leaves, BouGAREL, 483.—On the Constitution of 
WICHELHAUS: Density of Vapors 484.—New Re- 
sults in Pivaies 486, 
Geology and nd Mineralogy.—China, F. F. von ern 4817. Pa THERE cant 
logical Congress, 491. ba maces ogy of w Yo rk, JAMES HALL, 4 
reales oor page: Report of the New Fork State Museum of Natural 
istory: Notes on some new sections of Trilobites from the Tre=ton Limestone, 
D. 494. —Large Bowlders in New ire: Pr ane = 
Organic eae. ee the ay, of Minerals, H. us - Boutos, 495.—Note 
Uranium minerals in North Carolina, W. C. KERR, 4 
Botany and Zoology.—Wild hans ee America, Isaac SPRAGUE and GEORGE 
L. GOODALE: Peper in ong 497.—Catalogus Plantarum in Nova 
Ceesarea Repertar Srr JosepH Dayton Hooker, 498.—GrorGE HADLEY, 
M.D.: Joun Daney, 499. cS Hetbatinar for sale: rs Diagrams, LEUCKART 
and NITscHE, 5 
Astronomy.—The a Distance, 501. 
Miscellaneous apg Inielligence.—Notes on the Rocky Mountains, Sir JosEPH 
Hooker, 505.—The Earths found in the - North Carolina Samarskite: Artificial 
Tremors through the Earth’s Crust, Henry L. Apsott, 509.—Recherches 
expérimentales, M. DAUBREE, 510.—National Academy of | Science, 511.—Canada 
and New England ceils eal Thin Sections of Rocks, Minerals, etc., 512.— 
Obituary—James Orton, 
ERRATUM. 
On page. = line 8, for Swift-Borelly read Block- Swift-Borelly. 
Page 248, line 7 7 from foot, for depth read 
heat. 
Page a5 i 10 from foot, for the i bi insert a comma. 
Page 426, line 3, for Eaton 
