U I r E Ft G E R T 1 B V S. 



2:13 



sc pafito ju — r, fyirz r, ent 1 — 1 — /^, et.vr-r^, 

 at:iue 'lx — -l ( 1 - /c^ , vnJe fit -/ zr r,- ^^. (Stiia 

 ergo efl; A :nj^^ ^oCito .v — i, vel i' — r, erit qn;)- 

 qiie A — /-~r pofito- poft integracionem c zr i. Hrit 

 aiitcm -integnitionc pcr feriem infinitam^ per;ida A-j^-J^- 



— ■ ,— .u (,_it;/ ^ ('-'c'/'- (■— /iij<- ■T~ (1 — :-u;5— etc. 

 et pofito 1; rr I ob /z; — o, erit, vti iiflrjmfimib, 



A=:i — i-hr.2-i..2.3 -f^ r. a.s.^-r.-.j.^^q.f etc 

 Erit ergo A iterum. ar&i curiiae ,, ciiiiis nauira inter 

 abicifflim 1» et applicatam 7 hac cxprimirLir ae:|uatK)ne 

 y~:~,, fi quidem ponanir abfv-ifla -u .— r , quo calli 

 quoque fit _y zz; r. Notari aurcm hic oporret Iv deno- 

 care logarithmnm hyperbolicum ipfius 1;. Abfcifl^i ergo 

 nx— 1 denuo in decem parte.s diuifa, applicatae ia fiu- 

 gjilis diuifionum pundis fe hiihebiuit hoc raodo: 



Bincque itcrum per appropinquationcm: areae. valor. lit:- 

 serac A- fatis accurate obtinebiuij;.- 



