CONTENTS. HI 



PAGE 



XIV. Some Remarks on the probable Present Condition of 

 the Planets Jupiter and Saturn, in reference to 

 Temperature, &c. By James Nasmyth, Esq., 341 



XV. Captain H. Denham, F.R.S., on Deep Sea Soundings 



obtained in lat. 36° 49' S., long. 37° 6' W., . 346 



XVI. Critical Remarks on Astronomical Observations made 

 with Airy's Zenith Sector, from 1842 to 1850, 

 in the determination of the Latitudes of various 

 Trigonometrical Stations used in the Ordnance 

 Survey of the British Isles. Published by order 

 of the Master-General and Board of Ordnance, 

 under the direction of Lieutenant-Colonel Lewis 

 A. Hall, Royal Engineers, Superintendent of 

 the Ordnance Survey, . . .350 



XVII. Notes on the Scales of the Government Survey of 



Scotland, ..... 362 



XVIII. On a Quartziferous variety of Trachyte, found in 

 Iceland. By Theodor Kjerulf, of Christiania. 

 Communicated for the Edinburgh New Philoso- 

 phical Journal, .... 367 



XIX. Biography of the celebrated Naturalist, Baron Leo- 

 pold von Buch. Communicated for the Philo- 

 sophical Journal, .... 373 



XX. Register of the Weather and Climate of Rangoon for 



September 1852, .... 377 



XXI. On the Reduction in the Height of Waves after pass- 

 ing into Harbours. In a Letter to Professor 

 Jameson by Thomas Stevenson, Esq., Civil En- 

 gineer. . 378 



