1. One- and two-dimensional pulse electron paramagnetic resonance spectroscopy: concepts and applications

   • S. Van Doorslaer
   • A. Schweiger

   REVIEW ARTICLE Pages: 245 - 255

2. The oldest known tracks of web-footed birds from the Lower Cretaceous of South Korea

   • Jong-Deock Lim
   • Z. Zhou
   • S.-Y. Yang

   SHORT COMMUNICATION Pages: 256 - 259

3. Touch-free in situ investigation of ancient Egyptian pigments

   • M. Uda
   • S. Sassa
   • B. Zaghloul

   SHORT COMMUNICATION Pages: 260 - 263

4. A new find of a Middle Pleistocene mandible from Bilzingsleben, Germany

   • E. Vlcek
   • D. Mania
   • U. Mania

   SHORT COMMUNICATION Pages: 264 - 265

5. Absence of within-colony kin discrimination: foundresses of the social wasp, Polistes carolina, do not prefer their own larvae

   • J. E. Strassmann
   • P. Seppä
   • D. C. Queller

   SHORT COMMUNICATION Pages: 266 - 269

6. Numerical dating of the Eckfeld maar fossil site, Eifel, Germany: a calibration mark for the Eocene time scale

   • D. F. Mertz
   • C. C. Swisher
   • H. Lutz

   SHORT COMMUNICATION Pages: 270 - 274

7. Mycotoxin production on rice, pulses and oilseeds

   • Fouzia Begum
   • N. Samajpati

   SHORT COMMUNICATION Pages: 275 - 277

8. A GPS-based system for recording the flight paths of birds

   • K. von Hünerbein
   • H.-J. Hamann
   • W. Wiltschko

   SHORT COMMUNICATION Pages: 278 - 279

9. Trophallaxis in filled-crop honeybees (Apis mellifera L.): food-loading time affects unloading behaviour

   • A. J. Wainselboim
   • W. M. Farina

   SHORT COMMUNICATION Pages: 280 - 282

10. In vivo measurements of the internal pH of Hediste (Nereis) diversicolor (Annelida, Polychaeta) exposed to ambient sulphidic conditions using pH microelectrodes

    • Stefan Sommer
    • Andreas Jahn
    • Nils Brenke

    SHORT COMMUNICATION Pages: 283 - 287

11. Erratum: Naturwissenschaften 87 : 148–153 (2000)

    Pages: 288 - 288