1. Editorial

   • N. Sathyamurthy

   EditorialNotes 16 August 2019 Pages: 611 - 613

2. Science Smiles

   • Ayan Guha

   Announcement 16 August 2019 Pages: 616 - 616

3. The Man Who Knew Humanity

   • Partha P. Majumder

   Article-in-a-Box 16 August 2019 Pages: 617 - 622

4. I Am the Light Beneath Your Eyes…

   • Amrit Krishna Mitra

   General Article 16 August 2019 Pages: 623 - 632

5. Composition of Binary Quadratic Forms

   • François Séguin

   General Article 16 August 2019 Pages: 633 - 651

6. Feynman Diagrams: A Toy Example

   • Raghu Mahajan
   • Vijay A. Singh

   General Article 16 August 2019 Pages: 653 - 659

7. Foucault’s Pendulum Exploration Using MAPLE18

   • S. W. Anwane
   • Y. S. Anwane

   Classroom 16 August 2019 Pages: 661 - 679

8. Win or Lose? Listen to a Martingale!

   • Kapil Hari Paranjape

   Classroom 16 August 2019 Pages: 681 - 684

9. Functional Group Analysis in Undergraduate Laboratory Safe, Cost-effective and Micro-scale Alternatives

   • Sonia Ratnani
   • Shriniwas Gurjar
   • Abha Kathuria

   Classroom 16 August 2019 Pages: 685 - 689

10. Who Are We Indians?

    • T. N. C. Vidya

    Book Review 16 August 2019 Pages: 691 - 695

11. Face to Face with Professor P. Balaram

    • N. Sathyamurthy
    • P. Balaram

    Face to Face 16 August 2019 Pages: 697 - 710

12. The great human expansion

    • Brenna M. Henn
    • L. L. Cavalli-Sforza
    • Marcus W. Feldman

    Classics 16 August 2019 Pages: 711 - 718

13. Birds in the Backyard

    • T. N. C. Vidya

    News 16 August 2019 Pages: 719 - 719