CONTENTS. v 
Page. 
203:Alabaster in the Mammoth Cave of Kentucky, 206.— a 
@ Tubular concretions of Iron and Sand from Florida, 207.— 
Spark Extinguisher, 209.—Destructive Thunder Shower, 
210.—Elementary composition of vegetable tissue, 212.— 
Mr. Lyell and Mr. Murchison, 213.—Carburetted Hydrogen 
encased in spheres of Carbonate of Lime: Society of North- 
ern Antiquaries: Barometrical Observations made to ascer- 
tain the Level of the Dead Sea, 214.—Picture of a Parthian 
Archer, 215.—Correction, 216. 
NUMBER IL. 
Arr. I. A Notice of Prof. Augustine oe De Candolle ; by 
EORGE B. Emerson, 217 
II. Geological Reports of the ints of New York for 1840, 227 
III. On the Manipulations of the Dipping a ae : ~ Prof. 
Joun Locke, M. D., 235 
IV. The Involution of Polynomials ; by Wo. J. a 239 
V. Notice of a Hurricane that passed over New England 
in September, 1815; by Noyes Darurne, Esq., - 243 
VI. A New Method of dexeseiatatn the quantity of Nitrogen 
in Organic ssa enna: by sore VARRENTRAPP and 
WALEED é origi the Annalen der 
Chemie und Pharmacie, byl cuveacueais: M.D., 258 
VII. A Letter to Wm. Whewell, Professor of Moral Philoso- 
phy in the University of Cambridge, England, in reply 
| to certain allegations and arguments advanced in a 
pamphlet entitled a Demonstration that all Matter is 
q Heavy; by Prof. Roserr Hane, M. D., - - 260 
Vill. Integration of a particular kind of Differential Equations 
| of the second order; by Prof. TaEopore Srrone, 273 
"IX. Notice of the Seasbiigiia Writings of the late C. 8. Rafi- 
““ _ nesque; by 8. S. Hanpeman, » - 280 
X. Sir M. Faraday’s answer to Dr. Hare’s scnosed ‘asia 291 
* XI. Meteorological Observations, made at the Mines of San 
Fernando, situated in the Partido de la Manicaraqua, ee 
Island of Cuba; by Joun H. Buaxe, - 4 + 292 
XII. Reply to Dr. Hare’s Objections to the Whirlwind.’ a 
Ae tah ane ean wee 
