1. The influence of irrigation on the nitrogen, phosphorous and potash requirements of different potato varieties

   • W. C. Jacob
   • R. H. White-Stevens
   • P. H. Wessels

   OriginalPaper Pages: 241 - 255

2. The effect of zinc-containing dusts and sprays on the yield of potatoes

   • William G. Hoyman

   OriginalPaper Pages: 256 - 263

3. The waseca, chisago and satapa potatoes

   • F. A. Krantz
   • C. J. Eide
   • A. G. Tolaas

   BriefCommunication Pages: 264 - 269

4. Sectional notes

   • W. B. Ward
   • Ben F. Vance
   • Roger Gagon

   Announcement Pages: 270 - 278