"John" . "gb" . . "Tyndall, John (1820-1893)" . "John Tyndall" . . . "1893"^^ . "1820"^^ . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . "Tyndall" . . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . _:B683c40493a9b68151e2f9a2cb0e1fdc5 "2023-05-20"^^ . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . _:B683c40493a9b68151e2f9a2cb0e1fdc5 "070039089" . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . _:B683c40493a9b68151e2f9a2cb0e1fdc5 . _:B683c40493a9b68151e2f9a2cb0e1fdc5 .