280 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



The baiometiic readings show a somewhat irregular line of 

 pressure within a moderate range. Though the lowest reading 

 was 29-20 inches on the 2nd, the range afterwards was between 

 29-50 inches and 30-05 inches, the latter point being recorded 

 for the 20th and the 30th. 



Although no frost was recorded, the radiating thermometer on 

 the grass was at or below the freezing point (32° Fahr.) on 

 nineteen occasions. The average maximum temperature in shade 

 was 56° and the average minimum 43°. 



Rain fell to the amount of 3 36 inches, of which on five 

 occasions the fall for twenty-four hours exceeded 030 inch. 

 There were 14 dry days. 



Owing to the absence of frosts the progress which vegetation 

 had made in April was not materially checked, and there was a 

 satisfactory development of growth on most kinds of trees and 

 shrubs. The most serious drawback was caused by the high 

 winds, which severely damaged the soft leaves of Chestnuts and 

 Acers. The bulk of deciduous trees and shrubs were well leafed 

 by the end of the month. The Oak began to leaf on the 14th and 

 the Ash on the 16 th, the former thi-ee days and the latter nine 

 days earlier than in 1903. Shrubs generally bloomed well, more 

 particularly Rhododendrons. The display made by Rhododendron 

 Cuuninghami was exceptionally fine. It may be here noted that 

 this variety of Rhododendron is the best we have found for 

 planting in Glasgow, as it possesses a good constitution, is 

 excellent in habit, and seems to have some power of resisting the 

 dirt and smoke of a city better than any other. Amongst 

 deciduous shrubs the Lilacs and Azalea mollis were particularly 

 well bloomed. The common Hawthorn, or " May," was also fine, 

 and for once in a decade flowered in May. 



June. — The month opened with fine genial growing weather. 

 From the 5th to the 13th the days were generally bright and 

 sunny, but the air was cold owing to the prevalence of easterly 

 winds. With a change of the wind to the S.W. there was some 

 rain which tended to ameliorate the atmosphere. After a 

 somewhat severe gale on the 16th, which did a considerable 

 amount of damage, the weather became more genial and summer- 

 like, and (luring the last week it was very warm and fine. 



