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PALAEONTOLOGY: 



VOLUME IV, PART I. 



CONTAINING DESCRIPTIONS AND FIGURES OF THE FOSSIL BRACHIOPODA 



OF THB irPPKB HELDEBBEBQ, HAMILTON, POBTAOB AND CHEMUNQ GBOtJPS. 



1862-1866. 



BY JAMES HALL. 



ALBANY, N. Y. 



PRINTED BY C. VAN BENTHUYSEN AND SONS. 



MARCH, 1867. 



