C 
who was of Opinion, that, in order to execute it wide 
the utmoft Exa&itude, the fame Method ought to be 
employ'd as for the Meridian, by taking through the 
whole Extent of the Kingdom, Triangles link'd to- 
gether by means of Objeds feen fucceflively one from 
another, &c. This Projed of making a Map of 
France by fuch Triangles, had been already offer'd to 
Monf. Colbert by Monf. Ficart in 1681, but was not 
then executed. However, M. Cajjlni propofed, that 
thefe Triangles fhould be begun in a Diredion perpen- 
dicular to the Meridian 5 in order to render thefe 
Operations of Service towards the Decifion of the 
Earth’s Figure, purfuant to the Method which I fpoke 
of above : And M. CaJJini , having- in Perfon under- 
taken thefe Operations, and having carried them that 
fame Year, 1733, from Far is to St. Mala , whofe 
Longitude from Faris M. Ficart had obferved in 
1681 > the Relations of the Degrees on the Meridian 
and Parallel were found to be fuch as were required 
in the Hypothefis of the Earth lengthen'd at the Poles, 
and even more lengthen'd than CaJJini had determin'd 
.in 1718 . For inftead of the Diminution of afixtietft 
Part for each Degree of the Parallel, which I had 
found according to the Earth's Figure, as determined 
by CaJJini in 1718 , he deduced from his Operations 
in 1733 , a Diminution of the 36th Part of each 
Degree. 
True it is, that M .CaJJini, in the Account he gave 
of this Determination at the publick Meeting of No- 
'vember 14 , 173 . 3 , does not give it as entirely fure > 
becaufe the Longitude of St. Mala, with regard to 
Far is, was colle&ed but from one Obfervation only 
of Jupiter's firft Satellite, wherein there may poffibly 
