CONTENTS 
BoERKER— Ecological Investigations upon the Germination and Early Growth 
of@tionestwlree Stes omit etnias yerter yo purine ewe Mem pm esP yes) Ms, Sen ek os I 
PoyNTER—Arterial Anomalies Pertaining to the Aortic Arches and the Branches 
Arising from them ; 3 : Reap eehiceis bon het et 2 O 
SpaFFORD—The Effect of Climate and Soil Upon Agriculture... ... - gl 
SwENK—On a New Subspecies of Porcupine from Nebraska. .. . . » | WHS 
WILLIAMS—A Social Study of the Russian German. .......... «4127 
