CONTENTS. 
— oOo 
Page. 
Art. I. Notice of the Wonders of Geology ; by Gipzon ALGER- 
NON ManTeE.L1, LL.D. F.R.S., | 
II. Observations upon the Effects pioaused 6 on Plants is 
the Frost which occurred in England in the winter of 
1837-8 ; by Prof. Jonn LINDLEY, . 18 
III. Miscellaneous Notices on Galvanic avatie: in etter 
addressed to Prof. Silliman, October 4, 1838, and Au- 
gust 6, 1839, from the vicinity of London ; wy WIL- 
LIAM STURGEON, Esq.,_ . 28 
IV. Facts relative to the Tsiliperatuire of the Year, as Sard: 
ced from a series of observations made at Amherst Col- 
lege in 1839; by Prof. E. S. Snett, : 36 
V. On the Variation and Dip of the Magnetic Needle i in the 
United States; by Prof. Ex1as Loomis, . * 
VI. Caricography; by Prof. C. Dewey, : 50 
VII. Notice of the Tooth of a Mastodon; ” Fane Wr- 
maN, M.D., . 53 
VII. Infinite Divisibility of Matter, i 55 
IX. Formation and Dispersion of a Thunder isons 
helia, and aie a tok abe Wiis Gay- 
LORD : A . . 59 
X. Picenthely, r : 65 
XI. Table showing the First hacia of a the Closing 
and the time of Opening of the Connecticut River at 
Middletown ; by Josern Barratt, M. D., : 
XI. Pri k of the’ Ignéous = of the Earth ; a 
Prof. J. H. Laturop, 
XIII. ais a Third Annual Siete on the ficdhogical Sits 
vey of the State of New York, to the Assembly, Dotu- 
ment 275, Feb. 27, 1839; by Prof. Ouiver P. Hvs- 
BARD, M. D.,. 
XIV. An Answer to Dr. Hare’ 8 Letter on cindaie Theghetien! 
opinions; by M. Farapay,  . 
XV. Brief Synopsis of the —_— of skanlhs P. Espy’ 8 
Philosophy of Storms, . 120 
