dSS 



DE LENTIBVS 



vero eliciantur Yalores litterarum P, PQ, B, ?6, C 



et €5 hincqiie porro littcrae M et N ^ Quod autem 

 nd numerum S- attiiiet , conueniet pro co aliquot 

 liypoihefes accipi , vt intelligamus, "vnde diftantia 

 focalis q maximum obtineat valorem , quippe qui 

 pro data diflantia focali H ipfius lentis triplicatae 

 inaximam admittet apertnram , id quod omnis gcne- 

 ris telefcopiis maximum inducet perfecftionis gradum. 



Hypothefis prima 



grz.— i.f feu ^ — 2, 



§ ip. Incipiamus ab bypothefi 5 ir 2 , qul 

 diflantiae focaies extremae, fere aeque fupcrabuut me»- 

 diam q , eritque 



V—\\^ /Frr9,9<^3722o 



G—\l lG — 9y 9^15166 /GG=:p, 9<J30334 

 H — lll /11^9,9984894. /HH~9, 9969785 

 vndc porro fit 



/= 1,85415 



g— -3,70830 

 h:=: 2,7055^ 



/»— 0,5393311 

 q-- — o^ ti.6966 n 



r — o, 36951 n 



praeterea vero 

 p j* 



B zzi^l 

 » =^1 

 C — i>7055 



lf~o,26Si^53 



/g = (-)o>5<>9i755 

 Ih =0,4.322572 



/p= 9,731854.5 



/^ = (-)9)43o824S 



/r:r: 9,5^774=8 



h_-- 



b 



labebimus 



IV —0,0184854 



/PQno, 0015106 



/B =:o,o377885 



m =19,717453 + 

 /C =0,2318675 



/e ^Pj^^^^^ioS 



/B' = 0,ii33<f55 

 /58*=:9>i5 235oft 

 /C' = o,6956o25 

 /(2:' = 9,3p883op 

 Porro 



