i|.S8 DE TELESCOPIIS 



non folum ob Cl-*;-?!! minierum fatis notabikin ac vni- 

 tate (cmpcr mai« rem haec quaotitas \nitattm noa 

 iriediocriter (uperabit etii^mfi capiatur *a" ~ i j fdtt- 

 iam quia ^ fit niinKru!» plerumque Istis magnus ; 

 cum cnim pnno calu quo ;" r: i fit 



R _Vn'-+-' -rir _'— 'Vnv^ pt — '— — * "* -^ 



^——\^'ar~ ^ *■ B-V«,_, ^'^ BWm — (Vm-.)^' 



Cafu flut m fecunJo quo i — 2 ell 



— — T7"'i — "'"'^ "B— rv~-j ^^ B'v-"— ;Wv.-.T» 

 tertio \en) ca(u quo efl 



■p, — - »V' " -+-^ crit — ^" — — lil-'^ ; 



■" — .V« B^Vm — UV"» — O'* 



Qiinrto ceiiiquc cafu ob 



hinc igtur littcra nnnra fl tantum accipere pofc- 

 rit augmcnti m, \t leii§ cbi'(n:iua tri}li(;ata latis no- 

 tabileni n utatioi em lubire qucat, quam in pnixi ne- 

 gli^cre nequaqiKim liccbit , id quoci \nico ex-niplo 

 oltcndiffc (uffuia. 



EXEA:PLVM TELESCOPn 



ex fex kntibus ccmpcfiri qucd cbicifla 

 centies mnltipliccr. 



§. 30. Hic igitur erit i rr 3 , \nde vah res ex 

 cafu tertio ucpromtre opportet ; tum \ero kmidia- 

 meter can^pi erit (Ji rr 23? min. kleoque inHar Ipa- 

 tii circularis» in cctlo fptcflabitur cuaii. l^midianaier 

 ciit — 3^.°. 10' ideoque diamcter 6h*. 20'i lum \c- 



10 



