1. Influence of high-temperature exposure on sugar content and chipping quality of potatoes

   • Herman Timm
   • M. Yamaguchi
   • J. C. Bishop

   OriginalPaper Pages: 359 - 365

2. Potato leaf roll virus transmission as affected by plant locality

   • Guy W. Bishop

   OriginalPaper Pages: 366 - 372

3. Inactivation of potato leaf roll virus in tubers by hot water treatment

   • G. C. Upreti
   • B. B. Nagaich

   OriginalPaper Pages: 373 - 377

4. Nitrogen deficiency of potatoes in organic soil

   • E. F. Maas

   OriginalPaper Pages: 378 - 382

5. Effect of pentachloronitrobenzene on quality of potatoes

   • J. P. Sweeney
   • V. J. Chapman
   • P. A. Hepner

   OriginalPaper Pages: 383 - 390

6. Further histological comparisons of black spot, physiological internal necrosis, black heart, and hollow heart in potatoes

   • R. M. Reeve

   OriginalPaper Pages: 391 - 401

7. Dr. Frank Ross honored

   News and Reviews Pages: 401 - 402

8. Fifth meeting — slip

   News and Reviews Pages: 402 - 402

9. Irish potato — utilization of 1967 crop with comparisons

   News and Reviews Pages: 402 - 403

10. Errata

    OriginalPaper Pages: 403 - 403