H>alscontOQvapbical Society, 1907. 



A MONOGRAPH 



OF 



BRITISH GEAPTOLITES. 



BY 



I GERTRUDE L. ELLES, Sc.D., 



LATE GEOFFREY FELLOW, NEWNHAM COLLEGE, CAMBRIDGE j 



AND 



ETHEL M. 11. WOOL), D.Sc. 



[Mrs. SHAKESPEAR], 



OF NEWNHAM COLLEGE, CAMBRIDGE; AND THE UNIVERSITY OF BIRMINGHAM. 



EDITED BY 



CHARLES LAPWORTH, LL.D., F.R.S., 



PROFESSOR OF GEOLOGY IN THE UNIVERSITY OF BIRMINGHAM. 



PART VI. 



Pages xcvii— cxx, 217—272 ; Plates XXVIII— XXXI. 



LONDON: 



PRINTED FOR THE PAL^ONTOORAPHIC AL SOCIETY. 



1907. 



