1. Report on potato virus diseases in 1940

   • T. P. Dykstra

   OriginalPaper Pages: 221 - 230

2. Specific transmission of varieties of potato yellow-dwarf virus by related insects

   • L. M. Black

   OriginalPaper Pages: 231 - 233

3. Minor element studies on potatoes in Maine

   • Arthur Hawkins
   • J. A. Chucka
   • B. E. Brown

   OriginalPaper Pages: 234 - 239

4. Infection of first-year potato seedlings with fusarium solani var. eumartil

   • J. H. Jensen
   • R. W. Goss

   OriginalPaper Pages: 239 - 242

5. Sectional notes

   • C. L. Fitch
   • Frank W. Hussey
   • T. E. Odland

   Announcement Pages: 243 - 246

6. Brief articles

   Announcement Pages: 246 - 248