1. Building up virulence in phytophthora infestans

   • Donald Reddick
   • Wilford Mills

   OriginalPaper Pages: 29 - 34

2. The influence of acid and neutral fertilizer mixtures upon the yield of potatoes on the limed plats at onley, virginia

   • Jackson B. Hester

   OriginalPaper Pages: 35 - 37

3. The incidence of yellow dwarf in potato varieties

   • Carlton F. Taylor

   OriginalPaper Pages: 37 - 40

4. Report of the potato variety nomenclature committee

   OriginalPaper Pages: 41 - 42

5. Report of the certification committee of the potato association of America

   • K. H. Fernow

   BriefCommunication Pages: 43 - 47

6. Production of certified seed potatoes

   Report Pages: 48 - 56

7. Sectional notes

   • L. M. Ware
   • P. T. Ecton
   • J. F. Rosborough

   Announcement Pages: 58 - 58