| 1. | Mary's Church behind our seat, and as the sun dipped there was just sufficient change in the refraction and reflection to make it appear as if the light moved. - from Dracula by Bram Stoker |
| 2. | _Subsequent passages, of no less special interest, betray his knowledge of refraction and of the inversion of the image in the camera and in the eye_ --. - from The Notebooks of Leonardo Da Vinci, Complete by Leonardo Da Vinci |