CONTENTS 
I. Solid Culture Media With a Wide Range of Hydrogen and Hydroxyl Ion 
Concentration 
Frederick A. Wolf and I. Y. Shunk 
II. Further Studies on Bacterial Blight of Soybean. 
I. V. Shunk and Frederick A. Wot.f 
III. Tolerance to Acids of Certain Bacterial Plant Patliogenes 
Frederick A. Wolf and I. Y. Shunk 
1Y. Thermal Death Points of Some Bacterial Plant Patliogenes in Relation 
to Reaction of the Medium 
Frederick A. Wolf and A. C. Foster 
Y. The Fermentative Activity of Some Plant Pathogenic Bacteria in Rela¬ 
tion to Hydrogen Ion Concentration 
Frederick A. Wolf and A. C. Foster 
YI. The Application of Certain Recent Studies on Technic to Methods of 
Culture of Plant Patliogenes 
Frederick A. Wolf 
