1. Editorial

   • John Ewing

   Department 16 January 2009 Pages: 3 - 4

2. 50 and 100 Years Ago

   • Jeremy Gray

   Department 16 January 2009 Pages: 5 - 6

3. Erratum to: Updating the History of Circular A-21

   • Serge Lang

   Erratum 16 January 2009 Pages: 6 - 6

4. Mathematics as a cultural activity

   • Konrad Knopp

   Article 16 January 2009 Pages: 7 - 14

5. Folding regular star polygons and number theory

   • Peter Hilton
   • Jean Pedersen

   Articles 16 January 2009 Pages: 15 - 26

6. J. R. Wolf and the zürich sunspot relative numbers

   • Alan Julian Izenman

   Articles 16 January 2009 Pages: 27 - 33

7. The d’alembert-euler rivalry

   • Varadaraja V. Raman

   Articles 16 January 2009 Pages: 35 - 41

8. The principle of maximum entropy

   • Silviu Guiasu
   • Abe Shenitzer

   Articles 16 January 2009 Pages: 42 - 48

9. Problem corner

   • Murray S. Klamkin

   Departments 16 January 2009 Pages: 49 - 50

10. Mathematical judgment

    • William Browder

    Articles 16 January 2009 Pages: 51 - 52

11. Whose mathematical judgment?

    • Saunders Mac Lane

    Articles 16 January 2009 Pages: 52 - 52

12. Mathematics of the Gregorian Calendar

    • V. Frederick Rickey

    Articles 16 January 2009 Pages: 53 - 56

13. 1985 at the institute for mathematics and its applications

    • George R. Sell
    • Hans Weinberger

    Articles 16 January 2009 Pages: 57 - 58

14. Book Review

    • H.S.M. Coxeter

    BookReview 16 January 2009 Pages: 59 - 71

15. The evidence

    • Stan Wagon

    Departments 16 January 2009 Pages: 72 - 76

16. Old intelligencer

    • Frank Harary

    OriginalPaper 16 January 2009 Pages: 77 - 79

17. A bit of gossip: Schwarz

    • Hans Freudenthal

    OriginalPaper 16 January 2009 Pages: 79 - 79