260 Observations upon the effects of Frost, 



Abies Douglasii had its leaves turned yellow at Belsay, but it does 



not appear to have been seriously injured. A. Menziesii 



proved hardy in the Society's Garden. 

 Andromeda arborea, and even poUfolia, were killed in the Society's 



Garden. A. Jloribunda proved every where quite hardy, even 



at Worksop. 



Arbutus procera was uninjured against a west wall in the Garden 

 of the Society ; it was more injured at Carclew, where it is 

 planted as a standard in the shrubbery ; and at Brenchley, a 

 fine plant, with a stem 14 inches in circumference, was 

 destroyed. At Sketty it suffered very little. 



Bignonia capreolata was only a little injured on a south wall in 

 the Society's Garden ; in a similar situation at Spofforth it 

 suffered severely. 



Berberis Aquifolium, repens, and glumacea, sustained no injury 

 anywhere ; fascicularis was killed at Brenchley, Woburn, 

 Rolleston, and Redleaf,but it escaped at Singleton, and Carclew. 

 Tn the Society's Garden it was killed nearly to the ground, in 

 the open border, and much injured against a south wall. 



Ceanothus americanus, and Cissus stans, were killed to the ground 

 in the Society's Garden, but shot up again. At Rolleston, 

 the former was destroyed. 



Cerasus caroliniana, killed in the Society's Garden, was unhurt 

 at Sketty. 



Ceratiola ericoides sustained no injury in the Society's Garden. 

 Clethra alnifolia appeared at Sketty to be much injured, but broke 



into leaf and flower, nearly as usual., both there and at Penllar- 



gare. 



Crataegus microcarpa was much injured in the Society's Garden. 



Cactace^e. A hardy variety of Opuntia, under a hand-glass, occa- 

 sionally covered with a mat, was found safe at Owston. 

 Opuntia ferox was not at all injured at the foot of a south 

 wall at Norwich ; nor at Dropmore. At Spofforth, a Chilian 



