iv CONTENTS. 
igan ahh 78.—British Association : Report of the oS hoon of the 
U.S. Coast Survey, for 1869: Year-book of Nature Science for 1872, 
Annual Record of Science and Industry for 1872, Beavcae F. 
BaIrp, 79. tee and Birds: Views of Nature, Ezra C. SEAMEN: A Manual 
of Painerasty, GrorGE Dawson, 80.— Obituary. '—Christopher Hansteen, 80. 
NUMBER XXXIL 
Page 
Arr, XIII.—On the effects of Mase in changing the 
Dimensions of Iron and Steel bars, and in increasing the 
Interior pene of Hollow fron Cyiindiras by ALFRED 
M. May Par U,. <0. ee eee 81 
.—On site results of the Earth’s Contraction from oe 
ing; Part IV, Igneous Ejections, Volcanoes; by JAM 
Sue sek ek eens dee ene eee eee oe ee ” 104 
XV.—Researches on the Hexatomic compounds of Cobalt; 
oLcoTT GIBBS, . ..---.--------. +--~+----+------ 116 
XVI.—Mineralogical Notes on Utah, California and Nevada, 
with a fens ace of Priceite, a new Borate of Lime ; by 
B. io ae wee ee ee ow ee ee ee 126 
XVIL_— Remarks on the Distribution of the Fossils in 
Lower Potsdam Rocks at Troy, N. Y., with Geeouone 
of a few new species; by 8. Forp, 1 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics—On a new Determination of the Earth’s Density, CoRNU 
and BarLuz, 140.—On Spectral ete of Low Temperature, ree y, 141.— 
On lvent power of liquid ete eho CAILLETET: On Density < of 
the Vapor of rk Chloride, 142.—On nasiens Caine 
On a New Synthesis of Aromatic elds : Piven’: 143. 
Geology and Natural Bike is n Glacial Movements in Northern New York; by 
VENS, 144.—Deep-sea chalky deposits: but little magnesian: Num- 
m s and Orbitolit he Mesozoic, Belemnites in Eocene, 
monites in the Carboniferous: Bed of the Rhine at the falls of Schaffhausen 
chan G , WURTEMBERGER, 145.—Phosphati character of the 
shells of Obolus: Statistics of Mines an = Mining in the States and Territories 
e ountains for 1871, by R. W. Ravudwn, 146.— Min- 
eralogica um in reaeeee and An al Botany, by LE 
lytic: y. 
Maovt and DEcaIsnE; translated by Mrs. Hooxer, with additions, appendix, 
ete., by J. D. Hooker, 147. sigh ecoeay J in Sarracenia, 149.—Dionza: Primi- 
tise ‘Monographie panera F. CREPIN 
Astronomy.—A Catalogue of Auroras he a from 1776 to 1784, in Labrador, 
AxBE, 151.—Meteors of November 27, 1872, at Teneriffe, Cana 
EY, bt bservation of Tempel's Comet of Short 
Mek re by M. SrepHan: On nt Estimates ot Solar Temperature, by JAMES 
‘AR, 153. Motor seen in : Newfound dland, 15 
es se Scientific Intelligence.—Flow of Water in Rivers and Canals, by D. 
FARRAND one 154. raat by ie BR ele Rev. Horace ©. Hovey, 157. 
—A new and ingenious American M n the Game of Priority: Transactions 
cem : 
Academ my of Baaoces of Paris, Session of July Tth, 159.— Obitwary.—John Wells 
Foster, 159.—Henry James Clarke: Thomas Belden Butler: De Verneuil, 160. 
