.Transactions of the London Horticultural Society. 479 



ance of 1° is made on the two last observations for tlie immersion of the 

 register in the mercury. 



" In the interval between the last two observations, the mercury had de- 

 scended so as to pass the upper end of the register, indicating the point it had 

 reached by a globule, which had become detached, and which remained lodged 

 in the bent part of the tube beyond the register, showing a temperature of 

 at least 5° below zero ; how much lower it was, there was no evidence to 

 prove. 



" At Langley Farm, near Beckenham, in Kent, the residence of Lancelot 

 Holland, Esq., it was observed, that on the night of the 19-20th January a 

 thermometer facing the west, 6 inches above the ground and 20 yards from 

 the house, and from any body which could radiate heat, fell to 13^° below 

 zero. It stood at that point when Mr. Holland examined it a little aft"er seven 

 in the morning. It fell to zero soon after sunset; at 11 p.m. on the 19th it 

 was 3° below that point. In the morning of the 20th, Mr. Holland examined 

 two other thermometers attached to the house : the one facing the north was 

 7°, and that to the west 6° below zero. 



" At Redleaf, near Tonbridge, Mr. Wells reports the cold to have been 

 only 1° on the morning of the 20th, and the ground covered S inches deep 

 with snow. 



" At Cambridge, according to Professor Henslow, the thermometer 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 amygda- 

 loides 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 Stoneham, 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 Belgians, Mr. 

 M'Intosh states, that against a white wall, 4 feet from the ground, over a 

 gravel walk, and expt>sed without shelter to the east, the thermometer indi- 

 cated 12° below zero, and that at Walton, three 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 five miles distant from Glasgow it was 3i° 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 tiiat time. 



" At Worksop Manor, in Nottinghamshire, the seat of the Eai'l 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 of the evergreens. In the neighbourhood 

 of Worksop the cold was still more severe ; the thermometer having stood at 

 Osberton, the residence of G. S. Foljambe, Esq., at 2° below zero. 



" But although the frost, making all allowance for errors in instruments, 

 was thus severe in some places, it appears, as might be expected, that it was 

 far less intense in the western and southern parts of the island. 



" At Brenchley, near Lamberhurst, in Kent, whence some returns have 

 been furnished by Mr. Hooker, the amount of frost was not ascertained, but 

 he states that he examined his thermometer nightly after 11 p.m., and never 

 found it below 14° above zero. Mr. Hooker's nursery is situated on a gentle 

 slope to the north, with a slight valley running through the middle of it from 



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