443 



Scotia," Scottish 

 tion, March,' 1903. 



than tlio mean 8 a.m. temperature of the four summer months of 1902-3. The maximum temperature, 

 42 F., was observed on the 18th April during a calm; the minimum, - 13" F., on the 2-Uh April, when 

 a fresh gale was blowing from south-west. In the two mouths, therefore, the range of temperature 

 was 55 F. 



At 8 a.m. the prevailing wind during these autumn months proved to be from south, and the mean 

 force 4-2, which shows an increase of 1-9 on- the 8 a.m. Summer mean. The mean cloud amount was 

 again 8. Strong winds were recorded at 8 a.m. 11 times during the period, gales 12 times. 



From the 1st to the 20th March, 1903, the S.Y. "Scotia" was cruising in the Weddell Sea, and her 

 average position, from the 1st to the 10th inclusive, is given as latitude 67" 55' S., longitude 34 35' W. 



Observations made during this ten-day period give the following results : Mean pressure, 29 168 inches ; 

 highest barometer reading, 29 -610 inches, taken on the 6th; lowest, 28-367 inches, on the 9th. Mean 

 temperature, 27 F. ; maximum temperature, 29 -5 F., observed on the 9th; minimum, 20 -8 F., on the 

 6th. The sky was overcast during the whole of the period ; the average wind force was 2 -6, and gales 

 were experienced during 27 hours. The prevailing winds were from between north and south-east, north- 

 easterly winds predominating. During 53 hours snow fell, and sleet was noted against 2 hours. Rain 

 fell on 5 hours, and the weather was misty, or foggy, on 9 hours. 



From the llth to the 20th March the average position of the "Scotia" is given as latitude 63 40' S., 

 longitude 42 50' W. Pressure diminished during this period, and the mean is found to have been 

 29-00 inches. 



The highest barometer reading, 29-362 inches, was recorded on the 13th ; the lowest, 28-396 inches, on 

 the 20th. Temperature fell for the most part during this time, although the maximum temperature, 

 32 -1 F., was registered on 20th, and the minimum, 6 -9 F., 7 days before. 



The total observations for temperature during the 9 clays yield a mean of 24 4 F. 



The sky was cloudy, or overcast, during the greater portion of this period, the average amount of cloud 

 being 9 8. 



The average force of the wind was the same as the average of the previous period, 2 6, but only one 

 gale was experienced. 



Out of 240 observations of wind direction, 91 were of winds from north-eastward; 45 of winds from 

 northward ; 45 from southward ; and 28 from north-westward. Snow was recorded on 37 hours, sleet on 

 1 hour, and rain on 9 hours; the weather was misty or foggy on 13 hours. 



Observations made at Laurie Island, South Orkneys, by the Scottish Expedition during the month of 

 April, 1903, give the following results: Mean pressure 29 204 inches ; highest pressure 29 '859 inches, 

 observed on 2nd of the month; lowest 28 -279 inches, on the 24th. Mean temperature 20 -6 F. ; 

 maximum temperature 36 '2 F., registered on the 15th; minimum -8 - l F., on the 29th. The weather 

 was cloudy; snow was noted on 119 hours; sleet on 32 hours; rain on 48 hours; and hail on 2. Mist or 

 fog was noted on 51 hours. The average force of the wind, as estimated, is found to have been 1 '7, and 

 no gales were recorded. 



Out of 710 observations of wind direction, 510 were of winds from between south and north-west, round 

 by west, and the north-westerly wind predominated. Only 21 observations were of winds from eastward 

 and north-eastward. 



The north-westerly winds were doubtless occasioned by the approach of low-pressure systems, the wind 

 shifting to the westward and southward as the trough of the depression neared, passed over, and receded 

 from the station. 



At the "Discovery's" Winter Quarters, in McMurdo Sound, from May to August, 1903, inclusive, the " Discorery," May to 

 mean pressure was 29-223 inches, or 0-051 inch higher than the mean pressure in the corresponding 

 months of 1902; and the range of pressure, 1-761 inches, 0-280 inch smaller. The highest pressure, 

 30-061 inches, noted on the 31st July, associated with a fresh breeze frm east by south, is 0-120 inch 

 lower than the highest recorded during the corresponding period of the previous year. Readings of 

 30 037 inches and 30 027 inches were also recorded, the first on the 3rd June and the second on the 

 1st August. The lowest pressure, 28-300 inches, recorded on the 10th August, associated with a strong 

 aouth-south-west wind, is 0- 160 inch higher than the lowest pressure noted in the four months May to 



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I8land . 





