http://www.gutenberg.org/ebooks/subject/30338.opds 2024-11-14T16:35:06Z Books about Petrology (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 2024-11-14T16:35:06Z https://sendtokindle.compellingsciencefiction.com/ebooks/subject/30338.opds?sort_order=title Sort Alphabetically by Title 2024-11-14T16:35:06Z https://sendtokindle.compellingsciencefiction.com/ebooks/subject/30338.opds?sort_order=release_date Sort by Release Date 2024-11-14T16:35:06Z https://sendtokindle.compellingsciencefiction.com/ebooks/52839.opds Texas Rocks and Minerals: An Amateur's Guide Roselle M. Girard 2024-11-14T16:35:06Z https://sendtokindle.compellingsciencefiction.com/ebooks/66703.opds The Story of a Boulder; or, Gleanings from the Note-book of a Field Geologist Archibald Geikie