1. Obituary Michael Ebert (1914–1982)

   • Jürgen Kiefer

   Announcement Pages: 1 - 2

2. DNA repair kinetics in irradiated undifferentiated and terminally differentiated cells

   • Kenneth T. Wheeler
   • James V. Wierowski

   OriginalPaper Pages: 3 - 19

3. Inhibition of repair of premutational lesions in plateau phase Chinese hamster cells exposed to gamma radiation

   • B. S. Rao
   • L. E. Hopwood

   OriginalPaper Pages: 21 - 32

4. An analysis of the distribution and dose response of chromosome aberrations in human lymphocytes after in vitro exposure to¹³⁷Cesium gamma radiation

   • Norman A. Doggett
   • Wendell H. McKenzie

   OriginalPaper Pages: 33 - 51

5. Effect of thiol reagents and ionizing radiation on the permeability of erythrocyte membrane for spin-labeled non-electrolytes

   • K. Gwoździński
   • G. Bartosz
   • W. Leyko

   OriginalPaper Pages: 53 - 59

6. Bioelectric properties of frog sciatic nerves during exposure to stationary magnetic fields

   • C. T. Gaffey
   • T. S. Tenforde

   OriginalPaper Pages: 61 - 73

7. Strontium-90 and caesium-137 in Indian tea

   • B. Y. Lalit
   • T. V. Ramachandran
   • S. Rajan

   Short Communication Pages: 75 - 83