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6. Meteorological Observations at Melville Island. 



Abstract of the Register of the Thermometer and Barometer 

 during ten months, at Winter Harbour, Melville Island, 

 North Georgia, 1819 and 1820. 



Latitude 74° 47' IS", Longitude 110° 46' 30" W. 



Remarks. — The thermometer was fixed, during the winter, on the south 

 side of a david projecting frorii the ship's side, and was usually from 3° to 

 6° higher than one suspended freely in the air at a distance from the ship. 

 This difference increased as the summer advanced, and the sun rose suffi- 

 ciently above the horizon to heat the ship, amounting latterly to 15° or even 

 20° about noon. The thermometer was, of course, always shifted to the 

 shaded side of the ship or david. 



On the 15th of February, at 6 P. M., a thermometer suspended 

 freely in the air at a distance from the ship stood at — 55°, be- 

 ing the lowest degree registered during the winter. 



The very low temperatures were invariably in calm and clear 

 weather ; the rise of the Thermometer being the immediate con- 

 sequence of a breeze springing up, and being proportioned to 

 its strength. 



The Barometer rose with northerly and westerly, and fell with 

 southerly and easterly winds, but it was not so decided that the 

 indications preceded the changes as it is stated to be in more 

 southern climates. 



We are indebted for the above abstract to Captain Edward 

 Sabine, and much regret that an opportunity has not been af- 

 forded us of communicating to our readers a similar abstract of 

 a variety of important and interesting experiments and observa- 

 tions made by that gentleman during the Polar expedition. We 

 shall anxiously look for them in Captain Parry's narrative about 

 to be published. 



7. Chr ornate of Iron in the Island of Unst. 

 To the Editor. 

 Sir, — The paragraph respecting the discovery of chromate of 

 iron in Shetland, which appeared in a late Number of your 



