| 443 | -- | 450 | Dimitris Koukoulopoulos, Johann Thiel. Arrangements of Stars on the American Flag |
| 451 | -- | 467 | Fred Kuczmarski. Rolling Sinusoidal Spirals |
| 468 | -- | 476 | Robert Mandl, Thomas Pühringer, Maximilian Thaler. Analytic Approach to Galileo's Theorem on the Descent Time Along Two-Chord Paths in a Circle |
| 477 | -- | 484 | Paul Binding, Hans Volkmer. A Prüfer Angle Approach to the Periodic Sturm-Liouville Problem |
| 485 | -- | 494 | Raymond Mortini, Rudolf Rupp. Mappings into the Euclidean Sphere |
| 495 | -- | 501 | Branko Grünbaum. Really Napoleon's Theorem? |
| 502 | -- | 506 | Michael Dorfling, Johan Meyer. On Polynomials and Divisibility |
| 506 | -- | 509 | Pedro Roitman. Gaussian Curvature, Mirrors, and Maps |
| 510 | -- | 513 | Alan J. Aw. The Turán Number and Probabilistic Combinatorics |
| 513 | -- | 515 | Walter Wyss. Perfect Parallelograms |
| 516 | -- | 518 | Timothy C. Wallstrom. The Equalization Probability of the Pólya Urn |
| 518 | -- | 521 | Lars Holst. A Proof of Euler's Infinite Product for the Sine |
| 522 | -- | 529 | . Problems and Solutions |
| 530 | -- | 532 | Jennifer J. Quinn. Review: Combinatorics the Rota Way. Cambridge University Press, New York, 2009, xii+396 pp., ISBN 978-0-521-73794-4, $40.99. by Joseph P. S. Kung, Gian-Carlo Rota, and Catherine H. Yan |