STUDY XI. 259 



are more multiplied, and more generally diffufed 

 than thofe of the fécond. For example, there are 

 not fo many as fixteen hundred fpecies of plants in 

 the vicinity of Paris j but within the fame compafs, 

 there are enumerated near fix thoufand fpecies of 

 flies. This leads me to prefume, therefore, that 

 the different tribes of plants crofs with thofe of 

 animals, which renders their fpecies fufceptible of 

 different harmonies. Of this a udgment may be 

 formed from the variety of taftes, in birds of the 

 fame family. The black headed yellow-hammer 

 nettles in the ivy ; the red-headed in walls, in the 

 neighbourhood of hemp-fields ; the brown yellow- 

 hammer builds on trees by the highway's- fide, 

 where fhe finishes off her neft with horfe-hair. A 

 dozen fpecies of that bird are enumerated in our 

 climates, ea,ch of which has it's particular depart- 

 ment. Our different forts of larks are likewife 

 apportioned to different fituations ; to the woods, 

 to the meadows, to the heaths., to arable lands, and 

 to the fhores of the Sea. 



Very interefting obfervations may be made re- 

 fpe&ing the duration of vegetables, which are un- 

 equal, though fubjugated to the influences of the 

 fame elements. The oak ferves as a monument 

 to the nations ; and the nojlocium, which grows 

 at his foot, lives only a fingle day. All I fhall fay 

 upon this head, in general, is, that the period of 



s 2 their 



