Sacred Texts  Age of Reason  Index 
I. Prolegomena and General Introduction to the Book on Painting Index
  Previous  Next 
Buy this Book at Amazon.com

The Da Vinci Notebooks at sacred-texts.com

38.

The pupil of the eye, in the open air, changes in size with every degree of motion from the sun; and at every degree of its changes one and the same object seen by it will appear of a different size; although most frequently the relative scale of surrounding objects does not allow us to detect these variations in any single object we may look at.


Next: 39.