OF INSECTS, kc. 345 



old brush, such as painters use, till they are all 

 cleaned oif ; and if the part be canker-eaten, I cut 

 it clean out with a knife or chisel : I then take of 

 soap-suds and urine equal parts, and with this 

 I wash the wound and the bark all round it ; and 

 with a brush apply the Composition mixed w^th 

 wood-ashes and the powder of burnt bones, cover- 

 ing the wound all over with it. Afterwards I shake 

 some of the powder of wood-ashes and burnt bones, 

 mixed with an eighth part of unslaked lime finely 

 ])owdered and sifted, over the hollows, or where 

 knobs have been cut off. 



At the same time that the trees are cleared of 

 the Cocci, the Caterpillars should be picked off. 



The first time that I observed the new Coccus, 

 which has done so much mischief to the Apple- 

 trees about London, was in a garden of my own 

 at Chelsea, about the year 1782 or 3 ; and, as far 

 as I can learn, they were imported, among some 

 Apple-trees, by the late Mr. Swinton, of Sloane- 

 street.. Mr. Swinton afterwards removed his nur- 

 sery to the King's road, near Chelsea College, 

 which now goes by the name of the Foreign 

 Nursery. 



All the gardens about Chelsea and Kensington 

 are now very much infested with these insects ; 

 and I have frequently seen them in several other 

 parts of the kingdom. 



Doctor George Fordyce purchased several Apple-^ 

 trees at the sale of the effects of Mr. De la Tour, 

 Editor of the Courier de PEurope 5 all of which 



