1. Potato digger adjustment in relation to tuber bruising

   • E. V. Hardenburg
   • C. N. Turner

   OriginalPaper Pages: 191 - 197

2. Some evidence on the spread of bacterial wilt

   • C. H. Metzger
   • A. M. Binkley

   OriginalPaper Pages: 198 - 201

3. Report on potato virus diseases in 1939

   • T. P. Dykstra

   OriginalPaper Pages: 201 - 210

4. Sectional notes

   • E. Marx
   • W. B. Ward
   • H. L. Bailey

   BriefCommunication Pages: 210 - 216