Garrett Putman Serviss eBooks

Curiosities of the Sky: A Popular Presentation of the Great Riddles and Mysteries of Astronomy. E-book. Formato PDF Garrett Putman Serviss   -  Forgotten Books, 2017  - 

As plain language will permit, showing the wonder that is in them without getting away from the facts. Most Of them have hitherto been discussed only in technical form, and in treatises that the general public seldom sees and never reads.