* Artigas, Mariano; Glick, Thomas F., Martínez, Rafael A.; "Negotiating Darwin: the Vatican confronts evolution, 1877–1902", JHU Press, 2006, ISBN 0-8018-8389-X, 9780801883897, Google books* Brundell, Barry, “Catholic Church Politics and Evolution Theory, 1894-1902”, "The British Journal for the History of Science", Vol.
==Notes====References==*Artigas, Mariano; Glick, Thomas F., Martínez, Rafael A.; "Negotiating Darwin: the Vatican confronts evolution, 1877–1902", JHU Press, 2006, ISBN 0-8018-8389-X, 9780801883897, Google books*Brundell, Barry, "Catholic Church Politics and Evolution Theory, 1894-1902", "The British Journal for the History of Science", Vol.