Causes of Canker i7i Fruit Trees. 389 



if it can be conveniently done, inarching it, a fine tree would be 

 formed in a very short time. 



The scions may be put on of almost any size, even a large 

 plant. Smaller plants may be grafted or inarched either in the 

 stove or green-house. The plants that are grafted out of doors 

 I would recommend to be potted in the autumn, in order to give 

 them a little protection in winter ; again planting them out in 

 spring; and by continuing this system for two or three years, the 

 grafts will become fairly established, when they may be left out 

 all winter, with a good covering of mats in frosty weather. 



If the above hints be thought worthy the attention of any of 

 the numerous cultivators of this beautiful genus, I will yet hope 

 to see the pendulous, dwarf, and delicate species attain the first 

 place as ornamental plants, which they so richly merit, both in 

 the green-house and pleasure-ground. 



Oakfield, Cheltenham, June 13. 1840. 



Art. VIII. Notice of a Plant of Cereus grandlfloriis, at Eatington 

 Park, Shipston on Stour. By W. Hutchison, Gardener to E. 

 J. Shirley, Esq., M.P. 



I SEND you an account of a plant of Cereus grandiflorus now 

 in flower in the pine-stove here. It is a mistaken notion, that the 

 night-flowering cereus, as it is commonly called, only flowers at 

 ] 2 o'clock at night, and is off before the following morning. The 

 plant here covers a trellis on the back wall of the pine-stove 7 ft. 

 by 6 ft. Yesterday evening, at 8 o'clock, there were fifteen flowers 

 fully out at one time. It was one of the most magnificent sights 

 imaginable. It filled the whole house with odour ; indeed, so 

 strongly is it scented, that you can smell it before you open the 

 door of the house. It is rather singular that for three successive 

 seasons the number of flowers has been the same, viz. 21. 



The soil used is very light sandy loam, if loam it can be called, 

 as there is very litde in it but sand. From August to February 

 very little water is given ; as the spring advances, it is given 

 more freely. When the flower buds appear, water is given very 

 plentifully, and the buds swell fast and expand in all their glory. 



Eatington Park, June 13. 1840. 



Art. IX. On the Causes of Canher in Fruit Trees. By John 



Jennings. 



I BEG to offer a few remarks on the canker in fruit trees, but 

 more particularly in the pear tree. I have been endeavouring to 

 learn its cause, with a view to exterminate it if possible ; and, from 

 the observations I have made, I am led to conclude that it is 



