1. Leonardo: Foxy, or Fallible?

   • Jörg M. Wills
   • Dirk Huylebrouck

   Letter 17 July 2013 Pages: 1 - 1

2. Extreme Proofs I: The Irrationality of √2

   • John H. Conway
   • Joseph Shipman

   Article 21 May 2013 Pages: 2 - 7

3. Elliptic Curves and Modular Forms Converge South of the Taklamakan

   • Emily Grosholz

   Poem 16 March 2013 Pages: 8 - 8

4. Mathematics Made in Germany: On the Background to Hilbert’s Paris Lecture

   • David E. Rowe

   Years Ago 10 May 2013 Pages: 9 - 20

5. Arbitrarily Unfair Card Decks and a Conjecture of Artin

   • J. Rosoff

   Mathematical Gems and Curiosities 23 March 2013 Pages: 21 - 23

6. The Curved N-Body Problem: Risks and Rewards

   • Florin Diacu

   Article 23 July 2013 Pages: 24 - 33

7. A Grader’s Dream

   • Colin Adams

   Mathematically Bent 26 March 2013 Pages: 34 - 35

8. Tube Formulas for Self-Similar and Graph-Directed Fractals

   • Ali˙ Deni˙z
   • Şahi˙n Koçak
   • Adem Ersi˙n Üreyen

   Article 02 July 2013 Pages: 36 - 49

9. Success and Failure

   • Jim Henle

   Cucina Matematica 23 July 2013 Pages: 50 - 53

10. The Mentor of Alan Turing: Max Newman (1897–1984) as a Logician

    • I. Grattan-Guinness

    Article 30 June 2013 Pages: 54 - 63

11. Banach in Kraków: A Case Reopened

    • Danuta Ciesielska
    • Krzysztof Ciesielski

    The Mathematical Tourist Open access 29 June 2013 Pages: 64 - 68

12. Mathematical Excursions to the World’s Great Buildings by Alexander Hahn

    • Stephen R. Wassell
    • Kim Williams

    Reviews 05 June 2013 Pages: 69 - 73

13. Circles Disturbed: The Interplay of Mathematics and Narrativeby Apostolos Doxiadis and Barry Mazur (eds.)

    • John J. Watkins

    Reviews 28 May 2013 Pages: 74 - 75

14. Numbers Rule: The Vexing Mathematics of Democracy, from Plato to the Present by George G. Szpiro

    • Richard F. Potthoff

    Reviews 28 May 2013 Pages: 76 - 79

15. The Beauty of Everyday Mathematicsby Norbert Herrmann

    • Pamela Gorkin

    Reviews 31 May 2013 Pages: 80 - 80

16. The Newton Wars and the Beginning of the French Enlightenment by J. B. Shank

    • Tony Crilly

    Reviews 02 June 2013 Pages: 81 - 84

17. Mathematical Aspects of Quantum Field Theory by Edson de Faria and Welington de Melo

    • N. P. (Klaas) Landsman

    Reviews 28 June 2013 Pages: 85 - 87

18. Islamic Mathematics 1

    • Robin Wilson

    Stamp Corner 01 May 2013 Pages: 88 - 88