At: 
iv CONTENTS. 
M. 
by ¥e L. “8 Con NTE, M.D., 11 7 On the Mississippi Delta, by C. Lyetx, 118.— 
On the Origin = the Coal of Silesia, by Prof. Goprert: Remarks on the St. 
Louis Limeston . Excermann, M.D., 119.—Cause of the absence of An- 
cient Marine Pornasiobs from certain regions, by Cuartes Darwin, 120. 
Botany and Zoology.—Hillocks of om cat, bed of Be Falkland Islands, 121.— 
On 
the Vertebrate Structure of the Pro f. OWEN, e Remarks o 
the Me pee cola. y NGEL By — cs gaged at 
Sierra Leone: Tracks of Alligators: Wings of Locuste : Har anus, a new 
genus of fossil Postuniarins, 
Astronom my ee “ Shooting Stars, August 10, 1846, 125.—Ancient re- 
turns of Halley’s Comet, 126. —Prof. Peirce’s Catalogue of Comets, 127.—Le 
Verrier’s Planet, 1 Ne ew Comets 
Miscellaneous Intelligence. SER Institution, 132.—British Association, 
133.—On boring for ote Wells, AUVELLE, 135 Cee scussion on the 
Potato Disease, “tr! he Educational Statistics of Oxford, 137.—Mo as 
tion of Dr. Whew ell’s fe ometer, for measuring t te Velocity of the Wind 
by Dr. Rosixson: On the Ethnological Distribution of Round and Elo ngated 
ja, Prof. Rerzivs: On the Deviation of Falling Bodies from. the 
Perpendicular, by Prof. OrrstEp, 138.—Met measuring ht of 
louds, by Dr. Waewext: Gauss’s Magnetic Constants: Hydrodynamics: Re- 
fraction and Diffraction of Waves of Sound, 140.—Weather: North Pole : Dust 
= 
3 
a 
on 
‘a 
0 
onument to 
Artesian Well in the Gand Duchy of Luxemberg, 142. 
_ —Native Gold in : South Australia, 143. 
Obituary.—T. Mowticettr: M. Armé, 143.—Isatan Luxens, 144. 
Bibliography.—First Principles of Chemistry, for the use of Colleges and Schools, 
by Bensamin 8 ere aN M.A.: Second Annual Report on the Geolo 
Press: Tove hosibs ch fir F Freunde der G 
a Astronomical Observations made . Nig aval RS ot Wash- 
‘agi y Lieut, J. M. Gruriss, U. 8. N., 149.—Astronomical Observations 
made d las the Sx Bp at the National ai Washington, under 
AURY, 
the direction of 
List of Works, 150. 
NUMBER VIII, 
Avs, XV. A general Review of the Gecleay of lecsatan by g 
ee M. On Zoonh VERNEUIL, - 153 
hytes, No. IV; by Tames D. Dana A, = - - 160 
XVII. Review of the New York Geological Reports, - Best 164 
