1. Biology and Biological Action of the Defensive Secretion from a Jamaican Millipede

   • L. A. D. Williams
   • P. D. A. Singh
   • L. S. Caleb-Williams

   Communication Pages: 143 - 144

2. Incomplete Denitrification (NO and N2O) from Nitrate by Streptomyces violaceoruber and S. nitrosporeus Revealed by Acetylene Inhibition and 15N Gas Chromatography-Quadrupole Mass Spectrometry Analyses

   • A. Albrecht
   • J. C. G. Ottow
   • R. Russow

   Kurze Orginalmitteilung Pages: 145 - 147

3. Crushing of Quartz Sand to Produce Silt Particles

   • I. F. Jefferson
   • B. Q. Jefferson
   • I. J. Smalley

   Kurze Originalmitteilung Pages: 148 - 149

4. Surface Modification of Polyethylene by Plasma Grafting with Styrene for Enhanced Biocompatibility

   • K. E. Geckeler
   • R. Gebhardt
   • H. Grünwald

   Kurze Originalmitteilung Pages: 150 - 151

5. Occurrence of Four Neuropeptides in the Anterior Central Nervous System of the Butterfly Precis coenia

   • G. Starnecker
   • P. B. Koch
   • O. Yamashita

   Kurze Originalmitteilung Pages: 152 - 154

6. Semiochemically Induced Inhibition of Behaviour of Tomicus destruens (Woll.) (Coleoptera: Scolytidae)

   • A. Guerrero
   • J. Feixas
   • C. M. Woodcock

   Kurze Originalmitteilung Pages: 155 - 157

7. Grasshopper Reproductive Strategies Measured in the Field: a Tradeoff Between Age at Maturity and Egg Production per Day

   • Helmut Kriegbaum

   Kurze Originalmitteilung Pages: 157 - 159

8. Azimuthal Position Affects Analysis of Complex Sounds in the Mammalian Auditory System

   • U. Koch
   • B. Grothe

   Kurze Originalmitteilung Pages: 160 - 162

9. Responses of Insect Neurones to Neurotrophic Factors in Vitro

   • Carsten Pfahlert
   • Reinhard Lakes-Harlan

   Kurze Originalmitteilungen Pages: 163 - 165

10. Ultraviolet Colours in Pieris napi from Northern and Southern Finland: Arctic Females Are the Brightest!

    • V. B. Meyer-Rochow
    • M. Järvilehto

    Kurze Originalmitteilung Pages: 165 - 168

11. Long Rise Times of Acoustic Stimuli Improve Directional Hearing in Grasshoppers

    • Bernhard Ronacher
    • Rüdiger Krahe

    Kurze Originalmitteilungen Pages: 168 - 170