232 Observations upon the effects of Frost, 



meter was observed in the Botanic Garden at 3° above zero on the 

 20th at 11 P.M. ; and it was, therefore, in all probability, in the 

 morning as low as near London. Among other facts it was noticed, 

 that Vinca major and Euphorbia amygdaloides among our native 

 plants were much injured. Even the young shoots of all the trees 

 in the plantations near Cambridge suffered more or less, and what 

 seemed very remarkable, of none more so than the beech. 



In the garden of the Rev. Frederick Beadon, at North Stone- 

 ham, in Hampshire, the thermometer fell on the morning of the 

 20th to zero. 



At Claremont, the English seat of H. M. the King of the Bel- 

 gians, Mr. MIntosh states, that against a white wall, 4 feet from 

 the ground, over a gravel walk, and exposed without shelter to 

 the east, the thermometer indicated 12° below zero, and that at 

 Walton, 3 miles from Claremont, it was said to be as low as — 14°. 

 The ground was not covered, at the most, with more than 6 inches 

 of snow, and in many places was scarcely coloured. At this place 

 it was ascertained, that on an open part of the lawn, about 50 feet 

 above the general level of the park, the ground was frozen to the 

 depth of 28 inches. 



In the Glasgow Botanic Garden, Mr. S. Murray states, that 

 the lowest range of the thermometer during January and February 

 was 1° below zero, but 5 miles distant from Glasgow it was 

 3j° below zero. He however adds, that about 8 inches of snow 

 were by a partial thaw half dissolved, and afterwards frozen so 

 firm, that the Green of Glasgow was used as skating ground, and 

 during this period the branches of plants were like ropes of ice — 

 the varieties of Rhododendron arboreum suffered severely at that 

 time. 



At Worksop Manor, in Nottinghamshire, the seat of the Earl 

 of Surrey, the thermometer was seen at 3° above zero, on the 

 morning of the 20th of January ; the snow at the time lying, on 

 an average, 6 inches deep, and covering a great part of the foliage 



