r 267 ) 
^ >MRL=68^ 52. 30. 
The Side LM 603 7. o. 
Hence LR 5510. 3. 
In the Triangle NRU 
TheAnglesSNRL=ii5M'.3o". 
^ ?RNL= 27. 50. 30. 
T. ' F. 
The Side LR 5510. 3. 
Hence MR 7122. 2. 
Go on to Fig. 2. in the Triangle NRT. 
T. F. 
The Side NR 7122. 2. 
Hence NT 4822. 4. 
Finally in the Triangle NTV, 
TheAnsles$NTV=:830.s8'.4o^ 
The Angles j^^^^^^^ 34.30. 
T. F. . 
TheSideNT ^ 4822. 4. 
Hence NV rii6r. 4s which was fought. 
T, F. 
Now,addingthe Dift.betvveen MdvcyJinSiSourdou^viz^^-^^^. o. 
to the di ftance between Sour don and Amiens 1T161. 4> 
The whole will be the dift.between Mdvoyfm^ Amiens 79520. 4^ 
Having thus nieafured the particular diftances between Malvoy^ 
fwy Mareuil , Sour don, and Amiens, he proceeds to examine, in the 
eight Article, the Poficion of each of thefe Lines of diftance in re- 
fpeft of the Meridian^ or to deduce the Length of the Meridian in- 
tercepted bet ween the Parallels of jW^/^^jj^?.^ and Amiens i Which 
was thus done 5 
In Septemh.\669. he went to the Hill of Mareuil , and from the 
top of it, which is mark't with G in Fi^A . (from whence one can 
difcern Clermont on one fide, at I, and Malvoyfin on the other fide, 
at E.) he took the Meridian^ and with a Quadrant took the Angles 
of Declination from this Meridian.The manner he relates at length; 
the refulc whereof is, That by thefe Obfervatipns he found, 
The 
