Apparatus
1 Theorema XXV A  Diaphanorum pars secunda Theorema XXV C  DIAPHANORUM LIBER SECUNDUS De Iride THEOREMA XXV S
2 PARS SECUNDA in interl. A1   om. A C S
3 roridam A C2 S  totidem C
4 necesse est A   om. C S
5 quod A C S   signo posito in marg. C2
6 Et A   om. C S
7 ante abf del. fbg A
8 acg A S  AG C  C in interl. inser. C2
9 quantitatem bg A  differentiam rectorum AB, AC, AD C  differentiam rectarum AB, AC, AD S
10 sed A  et C S
11 angulos A  angulum C S
12 post refractio del. fiat A
13 proveniat A  perveniat C S
14 experientia et ratione A  ratione et experientia C S
15 convenit A  constant C  constat C2 S
16 1/2 A C  dimidium S
17 Ideo A   om. C S
18 ag A  AD C S
19 aequilatera A  aequiangula C S
20 post Quare inser. cum latus FG sit commune, erunt C S
21 bg ˜ aequales A C S   del. et iter. in interl. C2
22 lineae A   om. C S
23 a locis refractionum A  alias lineas refractionum C S
24 aequales A  aequales esse C S
25 fit A C  sit S
26 atque ideo A  ideo C  ideoque S   in marg. C2
27 refractionum A  infractionum C S
28 oportere C S   signo posito in marg. A
29 reflecti A  inflecti C S
30 quaerunt A C2 S  queunt C
31 Corollarium A  Corollarium 1 C  Corollaria 1 S
32 ergo A  igitur C S
33 ac A  et C S
34 Corollarium A  Corollarium 2 C  2 S
35 1/2 A C  dimidium S
36 post et del. qui ad g rectus erit A
37 1/2 A C  dimidium S