204. DE NOVO MICRO^SCOPIORVxM 



^. 3 ir. a 

 •m» — / 



v: TTzi^U; EV—v 



et di;UTietcr campi confpicui — n.a— '; « 



14. Hic Jintc on^nia obfcruo , Iins fbrmulas- 

 vfum habcre non poflc, nifi fit ma^^l fcu n>V 

 hoc cfl »r >> — , ob./— Sdig. ficque minorcs lcn- 

 ticulac ne ad exiguas quidcm mukiplicationcs y(ur- 

 pari polTunt. Statuamus ergo , \t has f<)rmulas 

 fimpliciorcs fcddamus ma — \xl vt lit muhiplicatio 



w — V ? ct microscopii conftruclio fecundum has 

 nicnfuras crit inllitucnda. 



Diftantiac focalcs apcrturac Intcrualla 



2 A a -^^ A g , -p /-■ - A a 



... 4Kff^-t-.>r ^ Aa _ p 4X_ ^ p^ — Li:^_±J.'-r 



T^ — :)A((x.+.i;T.-t-(|x-t-3, Aa' M-3» *^^ — H-3I ^-^ — H- — ^ 



/=:^-i^^i SS=^:a;;DE=^. 



f-;^ V j TTzzz ^ rj- EF=y 



vnr-yj VV=:i-i;; FO = i^' 1; 



a 

 et diameter campi confpicui ———, ct at:- r — 



flincque^— — et clantas =: — 



iS- Hae 



