http://book.klll.cc/ebooks/subject/20385.opds 2025-11-17T20:20:44Z Books about Footprints, Fossil -- Connecticut River Valley Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T20:20:44Z https://book.klll.cc/ebooks/34056.opds Remarks on some fossil impressions in the sandstone rocks of Connecticut River John Collins Warren