TERRAE AB ACTIONE VENERI5. 44^ 



Veneris mediam dcfignabit , ideoque angulus CP — • D 

 cloiigationeiii mediam Vcncris a Tcrra e Sole fpo- 

 <fl:uam, Dcfignemus igitur hanc clongationcm an- 

 gulo —p, qui quum tcmpori fit proportioaalis ^ 

 pomimus y'. izi m hinc igitur erit 



U = i|cof.p et V:=.llfm.p. 



Vnde conigimus > 



2Vcof.r + Ufin./=?-J(',fin.r/)-0-l-'^i"-fp+0) 

 2Vfin.?-Ucor./=:^-J(+kof:(p-0->cof(p + 0' 



25. His igitur notatis fingulae formukc intp- 

 gralcs , quae yalores X' et Y' conllituunt fequenti 

 modo fc habebunt : 



/V^/=:-/-fin.p.^. = -- ^ 

 /^n2Vco(:/ + Ufin.0 = ,-,/'^^(^rin.(/)-r} + »fin.(/)+f) 



/^; ( 2 V fin. ;-U cof 0= HA^^ ^' cof.( p- - 1 cof (p+0) 



— ; 'L" ( /'^- 'P — f) _ zjin.{p ^t) \ 

 •' J b V v\ ^ J b b m 



vndc colligimus ipfis quantitates X' ct Y' 



■y- a a f: coj. p cof. p i co f. p \ e_a m — ;. cof.p 



Fl^ m 2{iii—i) a (m "^- i)' ~ i 6* m (m TO — i) 



Y' — °-° (- ^Jttl + ^ /'^- P 4- f*"-P ^ liiZiP) — 12. l "'•--"i-«--)/ ;g.j 

 "bb^ mm ~ m '[in—i) m_|-i/ b b^ m m {m'^ — i) . 



27. Omnino hic infigne dubium occurrit, quod 



cafu m :=z I \traque haec qiiantitas abeat in inlini- 



K Jj;k 2 tum. 



