Vol. Ill NOVEIVIBER, 1914 No. 2 



JOURNAL OP 



AGRICULTURAL 

 RESEARCH 



CONTENTS 



Natxiral Revegetation of Range Lands Based upon Growth 



Reqturements and Life History of the Vegetation . . 03 



ARTHUR W. SAMPSON 



Pecan Rosette 2^9 



W. A, ORTON and FREDERICK V. RAND 



Nitrogenous SoU Constituent 175 



EDMUiro C. SHOREY and E. H. WALTERS 



Apple Root Borer 279 



F. E. BROOKS 



DEPARTMENT OP AGRICULTURE 



WASHINGTON, D.C. 



«>«MmaTON I OOVtRNMENT PRIBTINO OFFICE : I9U 



