http://www.gutenberg.org/ebooks/author/47428.opds 2024-11-14T05:06:56Z Books by Draper, Henry (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://www.gutenberg.org webmaster@gutenberg.org https://www.gutenberg.org/gutenberg/favicon.ico 25 1 2024-11-14T05:06:56Z https://sendtokindle.compellingsciencefiction.com/ebooks/53542.opds On the Construction of a Silvered Glass Telescope Henry Draper