Vili CONTENTS, 
NUMBER XXX. 
Arr. XLIV.—John Torrey: A Biographical Notice, .------ 411 
XLV.—Contributions from the Sheffield Laboratory of Yale 
ollege. No. XXVI. "aha a compact Anglesite from 
Arizona; by Gro. J. Bru + 
XLVL—On some Reaults of the Earth’s Contraction from 
cooling, including the Agee of rae ET and ni nature 
of the Earth’s Interio > by Ja Jamrs D. Dana. 423 
LVII.—On the Relations of the ailing: Coingloineealen 
and Limestone of Sauk crm S os to each other 
and to the Azoic; by Jamxs H. E 444 
VIII.—On the formation of the Meson of the Harth-sur 
gph Reply to criticisms of T. Sterry Hunt; by Josep 
TimCONT®, 6 ooo hn ec os 8 
XLIX. Makes of ma! boners on Jupiter and its Satellites ; 
y M: Miron: No.8.) 0 a 54 
L.—Some remarks on the Geological Structure of a district 
of country lying to the north of the Grand Cafion of the 
olorado; by J. OWkhie ss eo ge ee ss 456 
LL.—Remarks on certain Errors in Mr. J eftreys’s Article on 
“The Mollusca of ‘Theor compared tg those of Eas- 
tern North America;” by A. E. VERRILL, ---------- 465 
—Note on the use of a diffraction “ seen” s a substi- 
tute for the train of prisms in a Solar Ee cetrosope ; by 
G. A. YOUNG... coiccr a i oe sa ee, 472 
Aprenpix.—LIIL—Notice ot New Tertiary Mammals (con- . 
tinued); by O. C. Mar 485 
SCIENTIFIC INTELLIGENCE. 
Geology.—Note on ower occurrence of the Trias in British gee gs ee J. - Wait 
NEY, 473.—Notes to page 438, on mountain-making, by J. D. hee 
Geol 
Ru 9 : 
Plant: Hooker’s Icones Plantarum: Bentham and Hooker, Genera Plan’ 
m. S. Sullivant, 481, 
ae oe Observations of Meteers, 481.—Origin of Meteoroids and 
some ites, 4 
Uaneous ific Intelligence.—The National Academy of Sciences, 483.— 
Reports of ere and Surveys to ascertain the practicability of a ship 
0 
@ Examination of Medicinal Chenille, 4 
sg aaa A 3.0 241, 19 1. from top, fo: gy re wk read pel bane! 
Lac gh 419, line 23 from top, for forty,” read 
“ Vol. iv, p. 88, line 6 from top, for “spine,” read “spire.” 
