CONTENTS 
OF 
No. XX. 
Page 
Art. I. On an apparent Paradoxical Galvanic Experiment. 
By J. C. Oersted, Professor of Chemistry and Na- 
tural Philosophy in the University of Copenhagen, 
andF.R.S.E. - - - 205 
II. Remarks made during part of a Journey from Chris- 
tiania to Bergen in the summer of 1821. By Pro- 
fessor Hansteen, - - .207 
III. Observations on the Temperature of the Earth at Pa- 
ramatta, New South Wales. By His Excellency Sir 
Thomas Brisbane, K.C.B. F.R.S. Lond. &Ed. &c. 219 
IV. Description of a New Power, and Apparatus for im- 
pregnating Mineral Waters with Carbonic Acid. By 
Mr Charles Cameron, Chemist, Glasgow, - 222 
V. On Rock Formations. By Baron Alexander Hum- 
boldt. (Concluded from p. 53.), - 224? 
VI. Description of a newly discovered Temple, at Cadachio 
in Corfu. In a Letter to Sir James Macgrigor, Knt. 
By Samuel Roe, Esq. Surgeon 78th Regiment, 239 
VII. Astronomical Observations made at Paramatta in 1823. 
By His Excellency Sir Thomas Brisbane, K.C.B. 
F. R. S. Lond. & Edin. &c., and M. Rumker, 244? 
VIIl. Account of a Map of Koshanpri. By Francis Ha- 
milton, M. D. F. R. S. & F. A. S. Lond. & Edin. 
With a Plate, - - - 24,6 
IX. Description of a Variation in the Form of Bent Tubes, 
formerly described, for experimenting on small quan- 
tities of Gases. By Mr Williiam Kerr, - 251 
X. On a New Species of Double Refraction, accompany- 
ing a remarkable Structure in Analcime. By Da- 
vid Brewster, LL. D. F. R. S. Lond. & Sec. R. S. 
Edin. ----- 253 
