CONTENTS. 
Page. 
Prof. J. Greea on the Bald Eagle, 89 
Prof. S. L. Mitchell on the Proteus of the 1s A mecitun 
Lakes - 181 
Prof. S. a Mitchell on “ Mus iinet Sy ~ 183 
Prof. Jacob Green—Fragments relating to Animals, - 309 
PHYSICS, MECHANICS, CHEMISTRY AND THE ARTS. 
ae Baas Ward’s s Alternating eae, res a pat 
M. Gian on Navigable Canals eranblited: from the F endl 
by Mr. I. Doolitt ‘i 
Dr. B. W. Dwight’s Sai ofa remiaitiable Storm, - 134 
Dr. R. Hare on the Cause of Heat, - 142 
Professor J. Dana on some morbid suite Product - 149 
President Thomas Cooper, M. D. on Tests for Arsenic 155 
Dr. T. D. Porter on the same, aoe 
Dr. C. Miller on the use of Phosphoric acid in Jaundice, 
Prof. J. Green’s account tbe a new ane ipe, (re a figure,) 164 
On the manufacture o 
Notice of the Titeoevaphic so - - a 
Editor on the Tempest of Sept. 3, 1821, - - 171 
Editor on Natural lce-Houses, . 174 
Editor on a singular Change in two Cusiién Bal 8, - 178 
Prof. R are, M. D. account of an improved mode of sus- 
nding Gazometers, (with a figu 2 
Mr. Pearson’s patent domestic Telegraph, Aovih a plate, 314 
Great Earthquake at Kutch, (Edin. Phil. Jour.) 315 
Mr. Henry Seybert’s analysis of Spee of  stolybdeoum, 320 
Mr. Seyberv’s analysis of the American Chromat of [ron, 321 
Mr. G. T. Bowen’s —. of the Lake Erie Sulphat of Stron- 
tian, in - - 324 
Dr. J. L. Com tock on the Aphlogini Lamp, . - 328 
Mr. Dearborn on a Natural [ce-House - - 331 
Mr. Ives on the same 332 
Mr. Ed. Hitchcock’s Meteorological Journal kept at Deerfield 353 
Dr. T. R. Beck’s do. at Albany. 338 
Mr. W. 1. Denny on he cause of Goitr re, 388 
Dr. J. A. Allen on luminous appearances in the atmosphere, 341 
Letter of the —_ itor to Son ea on ford caren Defla- 
grator, 201 
MATHEMATICS. 
President Wm. Allen on the Curves of Trisection, - - $43 
