Remarks, In psge ico;, where, the French-degree dae ic ' 

 4724 is 607 95 fathoms j,^' it. W2i4^1ep I .. 



Survey.; but there muil: have beefirfonae, miftake^ fince in r~fer^Ir<'■'^ 

 to ihQ Bofs du Syfleme M^2Jr/p% vok. 3d p^, 89,., .the diftance \ •/.■ee;-. 

 Dunkirk ^nd Montjouy is 551683,6 iJof/^j?,, equal 5 37657,1 7- ■ f; 

 at the temperature of 3 2^sivhich reduced .1062^, v/iil be 58;475,4 ja. 

 thorns; whereas, the diftance between D2i«.|;H and Barcelona^ (v.hich is" 

 fomewhat lefs:. than the diftance betweea . Dunkirk 2aid M-ontjov 

 587987 fathoms, as given in voL 2d p.- i x?,. (arc on_ the, mend 

 Col . M u a G. E \^ Syii vey - . 



The mean degree, by- tbe French: inieafurernent, dae- to la' 

 46 11 5S (the middlq, ; point .between Dunkirk :,.a,nd . Montjoy__: 

 (0P728 fathom?, v^hich .appears. too- fmall. I have therelbre, fc: 

 prefeiitj taken the m^^n degree as deduced^fom the arc between -tbe^ 

 Pantheoo at P^m, and £t/fl2^5Cy, which for latitude 47 30 46, is 60779 

 fathoms^ reduced to the temperature of 62^ 1 and, by fabftituting thefe 

 in the formula^in p-. xpo, we Ihall have by the three eomparifons with 

 the French meafure, _?^_^==,-,_^^^ nearly : and the mean- of all the 

 eomparifons with the French^ EngliQi and Swedifh,. will give ^i^. 

 nearly^ for the, compJ"effiQ'a Vat "the .pole* . 



In p. ii4^,J'fls ,C|Hantk|f:;;5879^^^ ^^'^^ length'- 



of the terre{!rial arc between Dunkirk dind Barcelom, whofe differ- 

 ence of Utitude^is '940"'! 2,2=^^1687749, tvie j:;^ ^^ 



rad: uoity« Thefe data..,- give ..^i;.^ for .■■ '- -- 



'<■"*'■'■' 



fathoms be- put for L^ b.% the terreflri:. . 



Ivibnijouyy #hofe diSjrence of ■latitude -y 



t-he refale will ^i^iq ^^v^n^i^lfi :Sot- t\. ■ ■<y^'Ciii^ 



