( 43 ? > 
he was enabled to divide it by Meridians and Paral- 
lels^ as is practis’d in a general Map : And then he 
goes on in the following Words ; 
<£ I traced the Parallels from 15 to 15* Seconds , and 
“ the Meridians from zo to zo. And , as under the 
cc Parallel of Paris, 15 'Degrees ^/Latitude are equi- 
“ valent to zo of Longitude, and the like is true of 
“ Minutes and Seconds ; by allowing ? Seconds more 
cc to the Intervals of the Meridian?, than to thofe of 
“ the Parallels, I form'd perfect Squares.” 
He fays, the chief Ufe he intended to make of thefe 
Squares, was to compare the Magnitude of Paris with 
that of London , and gives an Account of what Me- 
thod he took to procure a juft Plan of this City, which 
he reduced to the fame Scale as that of Paris , and 
proceeds thus : 
“ 1 traced upon it in like Manner , Squares from 
“ 15 to 15* Seconds of a great Circle, and then 1 
<£ was prepared to compare the Greatnefs of the two 
“ Cities. ” 
t£ The Refult of this Comparifon is, that Paris con- 
ct tains 63 of thefe Squares, which makes for its Su - 
££ perficies s^^6^y/quare Toifes : And that 
£C don contains only 60 of thofe Squares 5 or 3370140 
£l fquare Toftes.” 
And from hence he concludes, that Paris is one 
twentieth Part greater than London , tho’ he fays he 
has excluded feveral Gardens, contained within Paris , 
out of this Menfuration, which would have made it 
bear ftill a greater Proportion to London. 
Upon reading this Account of Mr. de Life's, it imme- 
diately occurred to me, that the Method which he has 
here taken of comparing the Magnitudes of Paris and 
M m m 2. Lon - 
