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The Quarterly journal of the Geological Society of London . ANNIVERSARY ADDKESS OF THE PRESIDENT Pig Inferio view of the Kvf remit of the Mandible mirabilis Cope After Cope Proe Acad Nat Sci Philad pi vi Fig Side view of tJie Cranium of Xenophrys monticola Gilnth After Parker Phil Trans vol clxxii pi xxiii fig Page