20Jr TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



and there followed a number of days of bright and warm weather. 

 On the 19th the weather again became showery, and on the 23rd 

 some hail showers fell. The closing days of the month were dry 

 but cold, with a prevailing east wind. 



The atmospheric pressure during the month was rather lower 

 than the average. Only on two occasions did it rise above 30-00 

 inches — once about the middle and once at the end of the month — 

 the lowest readings being 29-20 inches, happening on the 7th 

 and on the 22nd. The direction of the wind varied a good deal, 

 but on 10 days it blew from the east. 



With the exception of one or two days during the month, when 

 the thermometer rose above 70°, the temperature was moderate. 

 The maximum thermometer in shade was at or above 70° on 5 

 occasions, and at or below 60° on 12 occasions. The average 

 temperatures were lower than the preceding August by 7° and 3° 

 respectively, the figures for 1900 being — maximum 62° and 

 minimum 50*. 



The rainfall of the month was 4-36 inches, and there were 16 

 dry days. 



The moist weather of the month tended to keep vegetation 

 fresh and bright, though for want of sunshine flowering plants did 

 not come up to the usual standard. 



September. — Throughout this month the weather was of a 

 pleasanter character than that of the previous month. The wind, 

 except on one day, was from the south-west, and, though strong 

 at times, was mild and refreshing, and there wei-e longer periods 

 of dry weather. The rainfall registered at Queen's Park was 

 3-70 inches, and there were 18 dry days. On two days of the 

 month over half an inch of rain fell, namely, 0-84 inch on the 

 27th, and 0-70 inch on the 30th. 



The barometer readings show a higher range than usual. 

 During the first half of the month the pressure varied between 

 29-75 inches and 30-30 inches; for the second half the range was 

 lower, from 30-00 inches on the 21st to 29-00 inches on the 27th. 



The average temperatures for the month were — maximum 61° 

 and minimum 47°, and higher than in 1899, which for the same 

 month were 59° and 46° respectively. 



The fine weather of the first part of the month improved the 



