1. Editorial

   EditorialNotes 06 September 2013 Pages: 687 - 687

2. Science smiles

   • Ayan Guha

   OriginalPaper 06 September 2013 Pages: 690 - 690

3. Justus Freiherr von Liebig

   • Gopalpur Nagendrappa

   General / Article 06 September 2013 Pages: 691 - 711

4. The twin prime problem and generalizations (après Yitang Zhang)

   • M. Ram Murty

   General / Article 06 September 2013 Pages: 712 - 731

5. The sacred lotus

   • R. N. Mandal
   • R. Bar

   General / Article 06 September 2013 Pages: 732 - 737

6. Combinatorial proofs and algebraic proofs — II

   • Shailesh A. Shirali

   General / Article 06 September 2013 Pages: 738 - 747

7. Lipophorin receptor: The insect lipoprotein receptor

   • G. Ravikumar
   • N. B. Vijayaprakash

   General / Article 06 September 2013 Pages: 748 - 755

8. Challenges in the quest for clean energies

   • Sheela K. Ramasesha

   Series / Article 06 September 2013 Pages: 756 - 770

9. Various quantum mechanical concepts for confinements in semiconductor nanocrystals

   • Jayakrishna Khatei
   • Karuna Kar Nanda

   Classroom 06 September 2013 Pages: 771 - 776

10. A snippet of Grignard reagent’s histroy

    • Sujan Singh Dua

    Classroom 06 September 2013 Pages: 777 - 780

11. Fifty-third Refresher Course in Experimental Physics

    Information and Announcements 06 September 2013 Pages: 781 - 781