TABLE OF CONTENTS 



PAGE 



Potato Blackleg, with Special Reference 

 to the Etiological Agent Harry M. Jennison 



Studies of South American Senec ios — I 



1-72 



J. M. Greenman 73-110 



Pod and Stem Blight of Soybean . Samuel G. Lehman 111-178 



Higher Fungi of the Hawaiian Islands .Edward A. Burt 179-189 



Indications Respecting the Nature of the 

 Infective Particles in the Mosaic Dis- 

 ease of Tobacco 



B. M. Duggar and Joanne K. Armstrong 191-212 



Citric Acid as a Source of Carbon for 

 Certain Citrus Fruit-Destroying Fungi 



Arthur F. Camp 213-298 



Studies in the Physiology of the Fungi. 

 XVI. Some Aspects of Nitrogen Me- 

 tabolism in Fungi Leo Joseph Klotz 299-368 



An Histological Study of Regenerative 

 Phenomena in Plants Cora Mautz Beals 369-384 



Notes on the Physiography of North 

 Dakota and the Conditions in Certain 

 of Its Waters R. T. Young 385-392 



Algae from Lakes in the Northeastern 



Part of North Dakota 



George T. Moore and Nellie Carter 393-422 



General Index to Volume X 423-427 



