76 PROCEEDINGS OF THE BOSTON-CAMBRIDGE MEETING 



PERSISTENCE OF FLUCTUATING VARIATIONS AS ILLUSTRATED BT THE 

 OENUS RHIPIDOMELLA 



BY HENRY S. WILLIAMS 



MIGRATIONS AND THE SHIFTING OF DEVONIAN FAUNAS 

 BY HENRY S. WILLIAMS 



(By title) 



INTRACOLONIAL ACCELERATION AND RETARDATION AND ITS BEARING ON 



SPECIES 



BY AMADEUS W. GRABAU 



FAUNA OF THE GIRARDEAU LIMESTONE AND OF THE EDGEWOOD FORMATION 



BY T. E. SAVAGE 



PHYLOGENY OF CERTAIN GERITHIID^ 

 BY ELVIRA WOOD 



MODE OF LIFE OF THE EURYPTERIDA 

 BY JOHN M. CLARKE AND RUDOLPH RUEDEMANN 



PLIOCENE AND PLEISTOCENE FORAMINIFERA FROM CALIFORNIA 

 BY RUFUS M. BAGG, JR. 



(By title) 



INTERNAL CHARACTERS OF SOME MISSISSIPPIAN RHYNCHONELLOID SHELLS 



BY STUART WELLER 



(By title) 



NEW CYSTID FROM THE CLINTON FORMATION OF ONTARIO 

 BY W. A. PARKS 



SOME NEW FOSSILS FROM THE CAMBRIAN OF SOUTH ATTLEBORO, MASS. 



BY W. B. HALL* 



NOTES ON THE UPPER CARBONIFEROUS IN SOUTHEAST NEW MEXICO AND 



WEST TEXAS 



BY G. B. RICHARDSON 



CORRELATION OF THE GUADALUPIAN AND KANSAS SECTIONS 

 BY J. W. BEEDE 



Herdman F. Cleland, 



Secretary. 



* Introduced by R. S. Lull. 



