Agassiz, L., & Humboldt, A. v. (1869). Address delivered on the centennial anniversary of the birth of Alexander von Humboldt, under the auspices of the Boston Society of Natural History: With an account of the evening reception / by Louis Agassiz. Boston Society of Nat. History.

Agassiz, Louis, and Alexander von Humboldt. Address Delivered on the Centennial Anniversary of the Birth of Alexander Von Humboldt, Under the Auspices of the Boston Society of Natural History: With an Account of the Evening Reception / by Louis Agassiz. Boston: Boston Society of Nat. History, 1869.

Agassiz, Louis, and Alexander von Humboldt. Address Delivered on the Centennial Anniversary of the Birth of Alexander Von Humboldt, Under the Auspices of the Boston Society of Natural History: With an Account of the Evening Reception / by Louis Agassiz. Boston Society of Nat. History, 1869.