Optics

See ahead? equal [lines], shorter than lines. fol. 126. no. 19.
Reflection at equal angles. fol. 127. no. 20.
Pyramids. fol. 127. no. 22.
Perpendicular. p. 127. no. 21.
Reflection. [fol.] 128. no. 24.
Cathetus. fol. 129. no. 27. 28. fol. 131. no. 36. and? 37. fol. 133. no. 43. fol. 146. no. 7.
Impossible. fol. 130. from no. 29.
Possible. fol. 137. from no. 51.
To find locations. fol. 133. from no. 44.
Altitudes. fol. 136. from no. 53.
In one image another. fol. 136. no. 56.
To see what may happen in another house. f. 137. no. 57.
Cathetus. fol. 150. no. 29. fol. 154. no. 32. pag. 121 . 131. in the theorem.
The angle of incidence is equal to the angle of reflection. fol. 124. no. 12. 10. 16. 14.
Shortest lines. fol. 126. no. 18.
Reflection by the shortest lines. p. 9. no. 17.

i 17243087