with the as'^istaiice of the microscope) 

 are laid amongst the white cotton-Hke sub- 

 stance in which the insect is enveloped, 

 and which it also deposits on the 

 bark of tlie trees. I liave from good 

 authority heard it was brought to this 

 country by the refugees from France, in 

 the reign of Louis XIV., when a colony 

 of these people settled at Paddington, 

 and there it was first observed to begin its 

 depredations on the apple trees: I am led 

 to think that it is a native of a warmer 

 climate than ours, from the circumstance 

 that the living insects as v/ell as the eggs 

 remaining on the branches of tlie trees are 

 frequently killed by the action of frost, 

 which was the case in the winter of 

 1813, a season in which I had them con- 

 tinually imder my notice, and I trust that 

 it has afforded me an o})portunity of 

 giving the world a cheap mode of destroy- 

 ing them, or at least of retarding their 

 progress. 



I am, in some measure, warranted in my 

 belief that the insect in question was in- 

 troduced from France, as an old French 



