http://book.klll.cc/ebooks/author/53669.opds?sort_order=release_date 2026-01-13T20:50:50Z Books by Barker, George F. (George Frederick) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2026-01-13T20:50:50Z https://en.wikipedia.org/wiki/George_Frederick_Barker See also: en.wikipedia 2026-01-13T20:50:50Z https://book.klll.cc/ebooks/66177.opds Half Hours With Modern Scientists: Lectures and Essays John Tyndall, Thomas Henry Huxley, George F. Barker, James Hutchison Stirling, and E. D. Cope