Memoirs MCZ 2021

HMOIKS University Press : John Wilson and Son, Cambridge, U S A CONTENTS THE NORTH AMERICAN CRINOIDEA CAMERATA By Charles WACnsiiuTH and Frank Spkixger PLATES I TO LXXXIII Together with the accompanying Explanation HUmoirs of lljt Pustum of (Homparalik ^oblojgu AT HARVARD COLLEGE ElGUTY-TuKEE PlATES TO ACCOMPANY Vols XX and XXI THE NORTH AMERICAN CRINOIDEA CAMERATA By CHARLES WACHSMUTH and FRA^K SPRINGER EIGHTY-THREE PLATES CAMBRIDGE, U.S.A.: ^Printcli for tl}c fHuscum May, 1897 PLATES AND EXPLANATION OF THE PLATES PLATE I Page Fig A long stem with a finely preserved Root, probably belonging to Poterlocrlnus From the Burlington Limestone Stem with enormous Cirri, probably of Butocrinus (jv