1. Editorial

   • N. Sathyamurthy

   EditorialNotes 16 August 2019 Pages: 719 - 720

2. Science Smiles

   • Ayan Guha

   Announcement 16 August 2019 Pages: 721 - 721

3. G N Lewis (1875–1946)

   • N. Sathyamurthy

   Article-in-a-Box 16 August 2019 Pages: 725 - 727

4. G N Lewis and Special Relativity

   • Rajaram Nityananda

   General Article 16 August 2019 Pages: 729 - 734

5. Birch and Benkeser Reductions

   • N. R. Dhatrak

   General Article 16 August 2019 Pages: 735 - 740

6. How to Design Experiments in Animal Behaviour

   • Raghavendra Gadagkar

   Series Article 16 August 2019 Pages: 741 - 753

7. Some Interesting Consequences of Furstenberg Topology

   • Fahed Zulfeqarr

   Classroom 16 August 2019 Pages: 755 - 765

8. Can a Glowing LED Light the Road to Accurate Determination of Planck’s Constant?

   • Chetan Kotabage

   Classroom 16 August 2019 Pages: 767 - 770

9. Democratizing Science and Redefining Education

   • Raghavendra Gadagkar

   Book Review 16 August 2019 Pages: 771 - 774

10. Face to Face with Professor C N R Rao

    • N. Sathyamurthy
    • C. N. R. Rao

    Face to Face 16 August 2019 Pages: 775 - 791

11. The Atom and the Molecule

    • Gilbert N. Lewis

    Classics 16 August 2019 Pages: 793 - 817

12. Erratum to: Editorial

    • N. Sathyamurthy

    Erratum 16 August 2019 Pages: 819 - 819

13. Flowering Tree

    News 16 August 2019 Pages: 821 - 821