1. Letters to the Editors

   • John Stillwell
   • H. Guggenheimer

   Department Pages: 192 - 193

2. Editorial

   • Detlef D. Spalt
   • T. H. Darmstadt

   Department Pages: 193 - 193

3. A proof that Euler missed ...

   • Alfred van der Poorten
   • R. Apéry

   Articles Pages: 195 - 203

4. Groups and graphs

   • Paul E. Schupp

   Articles Pages: 205 - 208

5. New and noteworthy

   Department Pages: 209 - 214

6. Chess 4.7 Gives Levy A Run For His Money

   • Monroe Newborn

   Reports and Dailogue Pages: 215 - 217

7. Mathematisches Forschungsinstitut Oberwolfach 1979 Program of Meetings

   Reports and Dailogue Pages: 217 - 217

8. ICM 1978, Helsinki

   Reports and Dailogue Pages: 218 - 219

9. On the Selection of the Invited Speakers to the 1978 ICM

   • Armand Borel

   Reports and Dailogue Pages: 220 - 220

10. Facts and feelings about the icm 1978

    • Olii Lehto

    Reports and Dailogue Pages: 221 - 222

11. On the history of the frankfurt mathematics seminar

    • Carl Ludwig Siegel
    • Kevin M. Lenzen

    Articles Pages: 223 - 230

12. Encounter with mathematics

    • Matthew P. Gaffney

    Book Review Pages: 231 - 232

13. Cryptology: The Mathematics of Secure Communication

    • Gustavus J. Simmons
    • I. Grattan-Guinness
    • Tim Poston

    Article Pages: 233 - 249

14. Solution to problem in number 3, p. 188

    The old intelligencer Pages: 250 - 250

15. Another problem

    The old intelligencer Pages: 250 - 250