1. Announcement to subscribers of the International Journal of Biometeorology

   • H. Lieth

   Announcement Pages: 183 - 184

2. Non-disjunction mutations inDrosophila exposed to magnetic fields

   • W. C. Levengood

   OriginalPaper Pages: 185 - 190

3. Effect of demedullation on freezing injury in hind limbs of rats

   • Shashi Dhingra
   • B. Bhatia
   • Baldev Singh

   OriginalPaper Pages: 191 - 199

4. Abstracts noted

   Abstract Pages: 200 - 200

5. Effects of chronic normobaric hypoxic and hypercapnic exposure in rats: Prevention of experimental chronic mountain sickness by hypercapnia

   • B. Lincoln
   • H. L. Bonkovsky
   • Lo -Chang Ou

   OriginalPaper Pages: 201 - 210

6. Electrolyte changes in the blood plasma of broilers as influenced by cooling during summer

   • M. L. Sharma
   • P. C. Gangwar

   OriginalPaper Pages: 211 - 216

7. Vergleich der Strahlungsverhältnisse über einem Buchenwald, zwei Kiefernwäldern und einer Grasfläche

   • J. van Eimern

   OriginalPaper Pages: 217 - 235

8. Circadian rhythm of aldosterone in dairy cattle during the summer

   • T. J. Aranas
   • J. D. Roussel
   • S. H. Seybt

   OriginalPaper Pages: 237 - 247

9. Effect of phosphate supplementation on oxygen delivery at high altitude

   • S. C. Jain
   • M. V. Singh
   • Y. V. Swamy

   OriginalPaper Pages: 249 - 257

10. Effects of meteorological factors on defensive behaviour of honey bees

    • E. E. Southwick
    • R. F. A. Moritz

    OriginalPaper Pages: 259 - 265

11. Abstracts noted

    • R. W. G

    Abstract Pages: 266 - 268