ADVERTISEMENT. 



i 



WHEREVER we have occafion to make mention 

 of perches, feet, or inches, without any fpecifi- 

 cation, they are to be underftood, according to the mea- 

 fures of Paris ; which, as they are more generally known, 

 will, therefore, not be fo apt to caufe ambiguity to the 

 reader. The perch of Paris f toife ) is equal to fix royal 

 feet (pie du roij. Every foot is equal to twelve inches, 

 or thumbs C pouces Jy and every inch to twelve lines. A 

 line is fuppofed to confift of ten parts, or points, in order 

 to be able the more eafily to exprefs the proportion which 

 this foot bears to others. The Toledan, or Spanifli foot, 

 which is the third part of a Caftilian vara (yardj, is to 

 the royal foot as 1240 to 1440; that is, of the 1440 

 parts, of which the royal foot is confidered to be com- 

 pofed, the Toledan foot has 1 240 ; wherefore feven 

 Toledan feet make about fix royal feet, or a Parifian 

 perch. 



In the chart of the Mexican empire, we have thought 

 it fufEcient to mark the provinces, and fome few places ; 

 omitting a great many, even confiderable cities, as their 

 names are fo long, the infertion of them would not have 

 left room for the names of the provinces. 



THE 



