1. News of the society

   • Robert E. Perdue

   News Pages: 3 - 4

2. Laticiferous plants of economic importance V. Resources of gutta-percha-Palaquium species (Sapotaceae)

   • Llewelyn Williams

   OriginalPaper Pages: 5 - 26

3. Seed hemagglutinins

   • Irvin E. Liener

   OriginalPaper Pages: 27 - 33

4. Carbon dioxide enrichment of greenhouse atmospheres for food crop production

   • S. H. Wittwer
   • W. M. Robb

   OriginalPaper Pages: 34 - 56

5. Pines in honduras

   • Louis O. Williams

   OriginalPaper Pages: 57 - 59

6. Corn in the culture of the mohawk iroquois

   • Daniel K. Onion

   OriginalPaper Pages: 60 - 66

7. Preliminary studies of the comparative morphology and certain indoles ofIpomoea seeds

   • Ara H. Der Marderosian
   • Richard L. Hauke
   • Heber W. Youngken

   OriginalPaper Pages: 67 - 76

8. Establishment of a pink root nursery

   • Bruce A. Perry
   • Elmo W. Davis
   • Henry A. Jones

   OriginalPaper Pages: 77 - 79

9. Kenaf (Hibiscus cannabinus), roselle (Hibiscus sabdariffa)

   • F. D. Wilson
   • M. Y. Menzel

   OriginalPaper Pages: 80 - 91

10. Book review

    • L. Kaplan
    • Richard W. Traxler
    • B. Lowy

    BookReview Pages: 92 - 96