http://www.gutenberg.org/ebooks/subject/24831.opds 2024-11-10T10:37:30Z Books about Laboratories -- Juvenile fiction (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 2024-11-10T10:37:30Z https://sendtokindle.compellingsciencefiction.com/ebooks/subject/24831.opds?sort_order=title Sort Alphabetically by Title 2024-11-10T10:37:30Z https://sendtokindle.compellingsciencefiction.com/ebooks/subject/24831.opds?sort_order=release_date Sort by Release Date 2024-11-10T10:37:30Z https://sendtokindle.compellingsciencefiction.com/ebooks/43904.opds Mystery Wings Roy J. Snell 2024-11-10T10:37:30Z https://sendtokindle.compellingsciencefiction.com/ebooks/53214.opds The Mystery of the Fifteen Sounds Van Powell