1. Nitrogen uptake

   • B. L. Haines

   OriginalPaper Pages: 295 - 303

2. Growth in Scots pine (Pinus silvestris L.)

   • T. Fagerström
   • U. Lohm

   OriginalPaper Pages: 305 - 315

3. Improved method using muramic acid to estimate biomass of bacteria in sediments

   • D. J. W. Moriarty

   OriginalPaper Pages: 317 - 323

4. Phosphorus in the soil-plant-animal ecosystem

   • J. Katznelson

   OriginalPaper Pages: 325 - 334

5. An ecological classification of European Drosophila species

   • B. Shorrocks

   OriginalPaper Pages: 335 - 345

6. The resistance of Pteridium aquilinum (L.) Kuhn to insect attack by Trichoplusia ni (Hübn.)

   • Stephen D. Hendrix

   OriginalPaper Pages: 347 - 361

7. Effects of light and temperature on leaf anatomy and photosynthesis in Fragaria vesca

   • Brain F. Chabot
   • Jean Fincher Chabot

   OriginalPaper Pages: 363 - 377

8. Seasonal variations of caloric values in herbaceous plants

   • Norbert Caspers

   OriginalPaper Pages: 379 - 383