1. In memoriam Dr Helmuth Brezowsky

   • Wolf H. Weihe

   Announcement Pages: 1 - 2

2. Tempora mutantur.....

   • Douglas H. K. Lee

   OriginalPaper Pages: 3 - 5

3. Le climat et la viticulture

   • B. Primault

   OriginalPaper Pages: 7 - 24

4. The effects of air ions on brain levels of serotonin in mice

   • A. P. Krueger
   • S. Kotaka

   OriginalPaper Pages: 25 - 38

5. Effects of negative air ions, noise, sex and age on maze learning in rats

   • R. A. Terry
   • D. G. Harden
   • A. M. Mayyasi

   OriginalPaper Pages: 39 - 49

6. Das Verhalten der natürlichen Klein — und Grossionen — konzentration in geschlossenen Räumen

   • J. Eichmeier

   OriginalPaper Pages: 51 - 60

7. The effect of a desert climate on the lactation and on the fertility of the nursing rat

   • M. Morag
   • J. Kali
   • Monica Furman

   OriginalPaper Pages: 61 - 68

8. The effect of light intensity on the breeding and development of rats and golden hamsters

   • W. H. Weihe
   • J. Schidlow
   • J. Strittmatter

   OriginalPaper Pages: 69 - 79

9. The feeling of dampness at low temperatures

   • M. R. Piggott

   OriginalPaper Pages: 81 - 86

10. Physiological chilling as a possible factor in mortality from neoplasia

    • S. Krasnow

    OriginalPaper Pages: 87 - 92

11. Symposium on Environmental Physiology at the Negev Institute for Arid Zone Research, Beer-Sheva, Israel, 30 June 1968

    Reports and News Pages: 93 - 98