== (i4=) === 

 fec [X = c tang |x, iif fit crz: cofecjxi unde fit i -^ u ti z=z u'- 'V% 



^.i2 r ' 



— V d v . , 



3 « — , proinde 



(i;'i; — i)" 



a vly r= - " ^'J^ , 



feu pofito nr — i rz: ;f , 



Haec expreflio fi dispefcatur in pnrtes fecundum ficlores de- 

 nominatoris, orietur 



; d ^ 1 - 3 V r r I 1_ T71» m* \ 



a 2^771- — n') ^"o — I i; -t- I n ( 77i -u -)- ti ) tj (771. xj — n)'' ' 



quae formula, diuifa quantitate v"^ per denominatores v — i, 

 V -f- I , etc. ob w^ — ;f — I , abit in fcquentcm: 



3 \}/ I /- ^ t; ^ "v I 71 3 O) 71 3 TJ \ 



"a~ ^ ^ i; -t-i 'V — I ^^ TO 1; — 71 m XI -(- Ti'^ ' 



vnde fit integrando: 



t zz: log. i/ !iiti! + !L log. y' '^L^ir^'' . 



Verum efl: 



n_ _ l/fr-51) — ■/ (i _ ^ ^), 

 m m 6 ' ^ ^ ' 



feu aequalis excentricitati ellipfcos Mcridianorum, qua pofita 

 — ^, liabemus : 



^ rz: log. |/ IL-ti _ f log. 1/ " -^ % 



ubi fi fubfiituaUir i-'mcorec|x, tandem fit 



^- — log. )/ ^ -" '""■ "■ — f log. / L±-l^^. 



§. 3. Confians adiicicnda inde detcrminatur, quod 

 cafu \1>— o, angulus [x aequari dcbet latitudini pundi A - a. 



