¹²²elevatior A S   elevantior C
¹²³ha A   AH C S
¹²⁴theorema A   theor. C S
¹²⁵post angulus del. dah A
¹²⁶fag A   CAG C S
¹²⁷Quare A C   Qnare S
¹²⁸19^am A   19 C S
¹²⁹fah A   FAB C S
¹³⁰cah ex cbh A   CAH C S
¹³¹Haec propos. similis videtur propositioni 9 ubi ostensum est rem ab inclinatiori (inclinationi C) oculo propinquiorem diaphano spectari, nempe per fractum radium magis elevatum, quo incidiens radius est magis depressus. Clavius in C S