[ >° ] 



vve do cats againft mice, and by attend- 

 ing to the defign of nature, prevent 

 much damage. Thus houfe-bugs, the 

 Phaltena Graminis, caterpillars which 

 infeft gardens, with a thoufand others, 

 might eafily be deftroyed by their 

 natural enemies. To bring this 

 art to fome degree of perfection, we 

 mufr. become better acquainted with 

 the plants, &c. on which infects feed, 

 with a variety of other circumftances, 

 which pofterity perhaps will be happy 

 in the difcOv r ery of. The great advan* 

 tages which have accrued to mankind 

 from lilk-worms and bees, have occa- 

 fioned fo many volumes to be written 

 on them, as would inclineone tothink 

 the fubje£t exhaufled ; but there is 

 much room for farther obfervation. 

 D. Lyonett has lately publifhed 2 vols. 

 in quarto on one infe£t, the Phalsena 

 Cofiiis, and yet hath flill left room for 



farther 



