1. Editorial

   • N. Sathyamurthy

   EditorialNotes 30 August 2019 Pages: 821 - 822

2. Science Smiles

   • Ayan Guha

   Announcement 30 August 2019 Pages: 823 - 823

3. Murray Gell-Mann (1929-2019) and the Story of Strong Interactions

   • G. Rajasekaran

   General Article 30 August 2019 Pages: 827 - 832

4. Sir Henry Hallet Dale

   • Andrew Wickens

   General Article 30 August 2019 Pages: 833 - 845

5. Influence of Learning Theories on Science Education

   • Sudhakar C. Agarkar

   General Article 30 August 2019 Pages: 847 - 859

6. Spherical Tiling with GeoGebra

   • Ana Breda
   • José Dos Santos

   General Article 30 August 2019 Pages: 861 - 873

7. How to Design Experiments in Animal Behaviour

   • Raghavendra Gadagkar

   Series Article 30 August 2019 Pages: 875 - 889

8. The Sounds of Music: Science of Musical Scales

   • Sushan Konar

   Series Article 30 August 2019 Pages: 891 - 900

9. Face to Face with Professor N Mukunda

   • N. Sathyamurthy
   • N. Mukunda

   Face to Face 30 August 2019 Pages: 901 - 921

10. A Schematic Model of Baryons and Mesons

    • M. Gell-Mann

    Classics 30 August 2019 Pages: 923 - 925

11. Erratum to: How to Design Experiments in Animal Behaviour

    • Raghavendra Gadagkar

    Erratum 30 August 2019 Pages: 927 - 927

12. Science Undergraduate Research Conference

    Information and Announcements 30 August 2019 Pages: 929 - 929