May 1892.] THE BOTANICAL SOCIETY OF EDINBURGH. 487 



On Temperature and Vegetation in the Botanic 

 Garden, Glasgow, during April 1892. By Robert Bullen, 

 Curator of the Garden. 



Another unusually cold, wintry month falls to be recorded. 

 Frost was registered on ten mornings, the total readings for 

 the month being 56°; but frequently the temperature was at 

 or little above the freezing point, probably owing to the 

 distant hills being heavily clad with snow, which fell 

 frequently, and heavily so, on a few days about the middle 

 of the month. Apart from the snow, the rainfall was very 

 light. Vegetation is in a backward state : the hardiest kinds 

 of herbaceous plants, and the earliest leafing deciduous trees, 

 were equally backward with more tender subjects. An old 

 plant of Cydonia japonica, which I have had occasion to note 

 in former years as being in bloom in Januaiy and February, 

 is only in bloom at the end of this month. 



On Temperature and Vegetation in the Eoyal Botanic 

 Garden, Edinburgh, during April 1892. By PtOBERT 

 Lindsay, Curator of the Garden. 



The month of April was, for the most part, excessively cold 

 and dry. Vegetation, in consequence, is in a very backward 

 condition, hardy spring flowers are late, and many of them 

 injured by frost. Most forest trees were still in their winter 

 condition at the close of the month. 



The thermometer was at or below the freezing point on 

 eleven occasions, the total amount of frost registered for the 

 month was 72° as against 56° for April 1891. The lowest 

 readings were on the mornings of the 14th, 22°; 15th, 21°; 

 16th, 23°; 17th, 22°; 18th, 23°. The total amount of frost 

 registered this season up to the end of April is 620° as 

 against 611° for the same period last year. The following 

 is the distribution for each month : — October, 20° of frost ; 

 November, 41°; December, 83°; January, 136°; February, 112°; 

 March, 156°; April, 72°. The lowest point reached this season 

 was 7° Fahr,, or 25° of frost, which occurred on the 19th 

 February last. 



