1. Seed germination problems in the Umbelliferae

   • Richard W. Robinson

   OriginalPaper Pages: 531 - 550

2. Compression wood in conifers as a morphogenetic phenomenon

   • Stephen H. Spurr
   • Matti J. Hyvärinen

   OriginalPaper Pages: 551 - 560

3. Wood fiber length as related to position in tree and growth

   • Stephen H. Spurr
   • Matti J. Hyvärinen

   OriginalPaper Pages: 561 - 575