iv CONTENTS. 
NUMBER XXXVIIL 
Arr. XIIL—On the Minute Diuuceure of the Solar Photo- 
aphere: by & Py Lineuee soe 2 ot 87 
—Measurements of the "Polusineticn of the Light re- 
flected by the Sky, oe ay one or more plates of glass ; 
Page 
by Pitwanp ©. Pickeeing, . 5 de 5k 102 
XV.—On the Dissipation “of ‘Riecksianty 3 in Gases; by DEmE- 
migreye BOBOULINIR,. 6.5 oy acoso ee ees 118 
XVI—Brief Contributions to Zodlogy, from the Museum of 
Yale College. . XX VIL—Results of recent Dredging 
Expeditions on the Coast of New England. N 0. 5; by 
A. EV MURIEL oo eae Ce gs BE 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics—On the Amount of Carbonic gas in the Atmospher . 
TrucHoT: On Hydrogen Arsenide, JANOWSKY, 139.—On the Sensitiveness of 
G n the 
ide, at riments on the evaporation 
of volatile Tiquidd, M. eae —-Time required by flint glass to hae ee 
magnetic con nditior VILL. a antages of a circular compass needle, M. 
DUCHEMER: On the aectriiat age which accompany irritation of the sia 
of Dionza muscipula, J. B. SANDERSON, 143. 
Geology and Natural History.—V olcanic hemes an — to develop its — 
Origin and Cosmical Relations, by Ropert Mauer, 145.—Geology of the Cob 
quid apa Nova Scotia, by D. ceitn cs 148. —On a shale (Brandsehiefe) 
in the : 
the Low r Permian, near "pillnite j in Saxony, by EUGENE 
Ww cies of Silica from a Meteorite, by ecaciccwn: Aa Aitecrsiogiacte 
Beobachtungen V, von Dr. ALB T So F: Geognostisch-mine: he 
s Italien, von G. vom Ratu, 150.—Note on Anomphalus Meeki 
lacial N Zealand: Fossils of New Zealan ddendum to 
it 1 -VoL.vi, bysk M , 151.—Stibiofe aD 
lara Co., California, by E. ‘hromite om Mon- 
terey Co., California, by HE. MITH : n Vitis, Hepatice 
can, by Coz F. Austin: ilysanthes gratioloides: Synopsis Gene 
is Lespedeze, eee I. Maxtmowicz, 153.—On matic Position of 
\LEXANDER AGassiz: The ‘Marine Mammals of the Northwestern Coast of 
rn ; 
tl a. S. M 
the coast of Gentian, by A. E. VERRILL, 158.—Revision of the Echini, by 
A 
I 
can Whale-tishery, by CHARLES M. eee ae ology of Terebratulina, by 
E. S. Morse: Crustacea common to Lake eenegs and the lakes of northern 
aooes : S. I. Surrn, 161.—The Amana Limulus polyphemus on the Dutch 
coast, 1 
Astronomy. a diecone “e Solar Pasi J. NorMan Lockyer, 162. eae 
Analyst: a Monthly Journal of pure = —— M athematig, J. E. HEnD: 
An en of the Orbit of Ura with general Pong of its Motion, ee 
Soon Newcoms: Astronomical Suggestions, by H. M. PARKHURST: Astronom- 
i e Observatory of Harvard Co vee 163. —Tableau de 
ical Eng rings, 
eee dans Feiss fecal et dans |’Inde, by Dr. E. Mamiy: Au- 
Miscellaneous Scientific Intelligence. —. 
and Silver production in 1873, fteng J. Yionest: United Stetes Gealogtel 
Survey of the oe 165.—First Book of ere by Wiutam S. 
Das saree Mag 
of France, 166. 
