[posted] Posted (#72963, Eddington) !

[ajhaines]

The nature of the physical world, by Arthur Stanley Eddington          72963
  [Author: Arthur Stanley Eddington]
  [Link: https://www.gutenberg.org/7/2/9/6/72963]
  [File: 72963-h.htm]

Thanks to Laura Natal Rodrigues (Images generously made available by The
Internet Archive.)

Regards,
Al