1. Letters to the editor

   Department 24 May 2014 Pages: 3 - 4

2. Years ago

   • Allen Shields

   Department 24 May 2014 Pages: 5 - 9

3. Opinion

   • Herbert A. Simon
   • Neal Koblitz

   Department 24 May 2014 Pages: 10 - 12

4. Gauss, dirichlet, and the law of biquadratic reciprocity

   • David E. Rowe

   Article 24 May 2014 Pages: 13 - 26

5. Andy Rooney, Ph.D.

   • Barry A. Cipra

   Article 24 May 2014 Pages: 27 - 27

6. Group extensions for 45 years

   • Saunders Mac Lane

   Article 24 May 2014 Pages: 29 - 35

7. The Euler busts

   • Alain Robert

   Department 24 May 2014 Pages: 36 - 36

8. Crabgrass, measles, and gypsy moths: An introduction to interacting particle systems

   • Richard Durrett

   Article 24 May 2014 Pages: 37 - 47

9. A simple decision procedure for Hofstadter’s Mitt-system

   • Laif Swanson
   • Robert J. McEliece

   Article 24 May 2014 Pages: 48 - 49

10. A Legacy from E. I. Zolotarev (1847–1878)

    • John Todd

    Article 24 May 2014 Pages: 50 - 53

11. Mathematical entertainments

    • Steven H. Weintraub

    Department 24 May 2014 Pages: 54 - 55

12. Divisibility— with visibility

    • Marta Sved

    Article 24 May 2014 Pages: 56 - 64

13. How I did not discover relativity

    • Jacques Hadamard

    Article 24 May 2014 Pages: 65 - 67

14. Reviews

    • Chandler Davis

    Department 24 May 2014 Pages: 68 - 71

15. Stamp corner

    • Robin Wilson

    Department 24 May 2014 Pages: 72 - 72