O B I E C T I V I S. 



5P7 



G-ll 



Hypothefis quiiita 



S^ll fiue gzz- Mf. 



f. 29. Cum igitur fit 12 3- — i* reperiemui 



/F=:9,754-^54<^ 



/G = 9, 97733^0 



/H 1=19,99007 2 8 



/GGrr 9,954(5710 

 /HHnr 9,9801455 



cx quibus confequimur 



/zr 2, 24457 



//— 0,3511328 



-, . /g=:(-) o, 5<55^823 



h-z:i 2, 27581 ||//?=i: o, s^^is^Jo 



pz=: o, 44550 n ['//>= 9, ^488(57a 



^-zi: — 0, 27184 n 

 r — 0,44042 n 



Iq — i-) 9,4343177 

 Ir— 9, «5438540. 



Praeterea vero/Pzz 0,02 25540 et /PQ^=:o, 0099274 



B= f 



S5 = f, 



C—h-i 

 feu (£ = 0,55189 



/B' — 0,7558175 

 /^' = 9,4243435 



/C* =0,317352» 

 /e* =19,248954* 



7B =0,2552725 

 I/5S =9,8581145 



]/B?8=o, ©533870 

 7C =:o, 1057874 

 '/€ =0,749^514 

 !/CS=:9,8554388 



Tandem igitur Log.Mi:9,9235i4<J et /N =9, 2 2 42 5 5 3. 



§. 30. lam quia fecunda lens fumitur aeque 

 COncaua vtrinque , erit 



tum vero ob rationcs fupra alkgatas, faciamus etiam 

 tertiam lentem aeque conuexam vtrinque, et ob 

 «a-i=::f et S:- ^ =: o, 05189 



D d d 3 calcu- 



