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The Quarterly journal of the Geological Society of London . CAKPENTEE ON THE EELATIONS OF On the Relations of Hyboceines Baeeoceinus and Hybo cystites By Heebeet Caepentee Esq Assistant Master at Eton College Communicated by Prof Maetin Dencan Lond Read May Plate XI The Crinoids from the Lower Silurian of Canada for which