78 Account of a Protecting Frame for Fruit-trees on Walls. 



hurt the trees ; if thinner, it would not wear. The edges 

 and seams of the screen are bound with tape. The cost of 

 the cloth is five-pence per yard, and that of the tape one 

 halfpenny per yard. 



When the frame and screen are taken off the wall, the 

 latter should be placed in a dry room out of the reach of rats 

 and mice, and a little camphor should be sprinkled between 

 its folds to drive away the moths. 



The size of the wire used for the screen to run upon, must 

 depend on the length of the frame, which may vary from nine 

 to eighteen feet, that is from three to six breadths of the 

 cloth. For the shortest length, it may be less than a quarter 

 of an inch in diameter ; for the greater length, a slight increase 

 of strength, and consequently of thickness, is required. The 

 wire is always kept straight by means of the screws at its ex- 

 tremities. If the screen is made to exceed three breadths 

 of the cloth, a slight slip of wood may be tacked to each 

 alternate seam, the whole length of the seam perpendicularly ; 

 this addition will stiffen the screen, as well as prevent it being 

 much shaken by the wind, without impeding its sliding back- 

 wards and forwards. 



I am with the utmost respect, 



Your most obedient Servant, 



Ballindean Garden, JoHN DlCK. 



January 4, 1826. 



