144 APPENDIX. 



be of no trifling description ; however, I hope 

 and trust a remedy will be discovered. Mr. 

 Street, from having become satisfied by re- 

 peated trials that the Chelsea Apple Powder 

 greatly encourages, rather than retards the 

 growth of fruit trees, has made use of it on 

 this occasion, and seems more and more satis- 

 fied of its having the desired effect : however, 

 as its principal object is intended for the pre- 

 servation of the Apple trees, its further uses 

 must be left for the public to discover. Thus far 

 I can say, powerful as it is in its operation on 

 insects, it will not injure the most tender plant; 

 but to recommend it for various purposes, 

 might lead it from the main object, therefore 

 for the present I wish to confine it to the pre- 

 servation of the apples. 



A person who has made insects his study, 

 through their various changes, must be lost in 

 astonishment, when they contemplate the won- 

 derful sagacity Providence has endowed them 

 with; who has taught the butterfly or moth, 

 to select the different vegetables or trees, their 

 young will thrive best on ; how do they know 

 their young will become caterpillars, and not be 

 able to fly about for food like themselves ? yet 

 nature has so ordered it, that these destructive 

 vermin may be provided for : even the large 



