1. Preliminary evaluation of some soil disin-festants for controlling southern bacterial wilt of potatoes

   • L. W. Nielsen
   • F. A. Todd

   OriginalPaper Pages: 197 - 202

2. Breeding for resistance to late blight in the potato

   • F. J. Stevenson
   • E. S. Schultz
   • Lillian C. Cash

   OriginalPaper Pages: 203 - 223

3. Sectional notes

   • B. A. Brown
   • Marx Koehnke
   • H. R. Talmage

   Announcement Pages: 223 - 227