258 RESULTS OF THE METEOROLOGICAL OBSERVATIONS TAKEN DURING 



METEOROLOGY OF THE SOUTH ORKNEYS, 



The discussion is based on the observations taken at the South Orkneys during the 

 year ending 3Lst March 1904, the station being the winter quarters of the " Scotia" in 

 Scotia Bay during the seven months April to October 1903, and thereafter at the land 

 station at Omond House some 600 yards north-west of the wintering station. During 

 the winter and until the "Scotia" was set free by the breaking up of the ice on 23rd 

 November 1903, a large number of simultaneous observations were made on the ship 

 and at the shore station ; but. except as regards the direction of the wind, no appreciable 

 difference was noted between the two stations. It may be observed that hourly 

 means for some of the elements ai-e not complete for the whole year, but in the 

 discussion I have utilised all the data kindly sent by Mr Davis in the form of advance 

 proof sheets. In some of the tables the means are grouped in seasons, these being : 

 Spring (September, October, November), Summer (December, January, February), 

 Autumn (March, April, May), and Winter (June, July, August). 



Barometric Pressure. 



The mean barometric pressure for the year ending March 1904 (corrected to 32° 

 and mean sea level) was 29"2I3 inches, being highest (29"340 inches) in October 1903 

 and lowest (29*107 inches) in March 1904, thus showing a range of 0"233 inch in the 

 monthly means. The following table gives particulars for the twelve months uuder 

 review. The correction to standard gravity at Lat. 45° for pressures of 29"00 and 29"50 

 inches is + '038 inch ; this has not been applied to any of the observations. 



