By Professor Lindley. 



237 



feet in depth, on a limestone substratum, several laurustinuses, thus 

 sheltered, and in a situation not affected by damp, did not suffer at 

 all ; and other specimens against walls, on which the sun never 

 shines, were equally uninjured. 



At Belsay Castle, in Northumberland, in the neighbourhood of 

 which the thermometer was not remarked lower than 10° above 

 zero, the ground was covered with snow to the depth of from 1 

 to 2 feet, during at least eight weeks ; and consequently but little 

 damage comparatively was experienced. For this reason the results 

 observed in this garden are at variance with those obtained else- 

 where, and the effects of the frost were much less severe than would 

 have been expected from the northerly station of Belsay. Cauli- 

 flowers covered by handglasses were unharmed. A standard plant 

 of Spartium aetnense had only the points of its shoots scorched by 

 the frost, but it was not in its usual health in the following summer. 

 Camellias with a slight covering of haulm, although weakened, 

 were saved, but Myrtles were killed to the ground. Among the 

 plants, which sustained little or no injury, were Abies Deodara, 

 Paeonia Moutan, and the following Magnolias, viz. tripetala, auri- 

 culata, glauca, and Thompsoniana, as standards, and M. conspicua, 

 against a wall. In a nursery ground, 500 feet above the sea, a 

 cypress, about 20 years old, was scorched, but younger plants 

 were mostly killed ; Araucaria Dombeyi, and a scarlet Arbutus 

 were not hurt, and CunnrnghaTnia sinensis was only injured in the 

 upper branches. 



From these places, and the other sources already named, a large 

 number of valuable returns of plants killed, and left alive, has been 

 obtained ; and, in order to ensure all possible accuracy, they have 

 been referred back to their several authors, for such corrections 

 and additions as it might appear desirable to make. The result 

 will I hope be found of great interest. 



It is only by repeated observations of this kind that we can 



VOL. II. 2nd series. 2 I 



