570 DE PARALLELO LVNAE 



fitum eft vt inueftigetur angulus jjlMik, At in 

 tnangulo jx M m eft 



ang. (jl M m : fA. ;» : : fin. M jjl tk : M m ideoque ob 



fin. M jjl m — cof. Z M P quam proxime , 



aMw-^cof.2MP, 



hinc vero (i Polo Z iateruatlo Z M defcribatur ar- 

 cus circuli paralleli Mc ob 



M m : m v ; : i : fin. Z M P colligitur 



ll M m = £-2 fin. Z M P cof. Z M P. 



1 m » 



Porro exiftimat Ctleb. Vir efie ^- — tt cof. Z M , 



m v 



contendit enim jjl m aequari variationi parallaxeos in 

 altitudinem , quod etiamfi falfum eft , haud for- 

 fan inutile erit perfpexiffe , quomodo quis in huius- 

 modi paralogismum incidere queat, Defcriptis igi- 

 tur r^olo P et interuallo P L arcu circuli minoris 

 L /, nec non Polo Z et interuailo ZL, arcu LX, 

 et du&is arcubus P L, PM, liquet efie differcntialc 

 parallaxeos 



— d.ZM-d.ZL~ p.v-/X,atobLM — Tffin.ZM 



proxime , fiet 



^.LM — (JLy.7rcorZM, hinc \lv. 7tcof.2M:=|jLV-/A, 



quod fi nunc quis fibi perfuadeat efie IXzzmv, inde 

 quoque concludet fore 



ix v — / X — \k m— \lv.tz cof. Z M , 

 hincque angulum 

 jjLM»=:Jffin.ZMPcoC2MP=Tccof.2Man.2MP.cof.2MF. 



Praeci- 



