( 6o ) 



and others, whofe foliage and verdure are raoft oppofite 

 to thofe of the hedge. 



The dimenfions both of their ftraight roads and walks> 

 vary according to the purpofes they are defigned for ; and, 

 in fome degree too, according to their length. Roads or 

 avenues to considerable objedts, are, as has been obferved, 

 generally compofed of three parallel walks : that in the 

 middle being from thirty to one hundred and fifty, or 

 even two hundred feet wide ; thofe on the fides, from 

 fifteen to forty. In their Gardens, the principal flraight 

 walks are never narrower than twenty feet; and feldom 

 broader than forty-five or fifty: and the fmalleft ftraight 

 walks are at leaft twelve feet wide. Thirty to thirty-fix 

 feet is called afufficient width for a length of two hundred 

 yards; forty to fifty for one of four hundred; fixty for 

 one of fix hundred; and feventy for a length of eight 

 hundred yards: and when the extent is more than this 

 laft dimenfion, they do not tie themfelvesup to any pro- 

 portion, but encreafe their width as much as they con 

 veniently can ; never, however, exceeding one hundred 



and 



