1. The spectral character of the reflection by a regularly stratified medium: Part I

   • R. V. Subrahmanian

   OriginalPaper Pages: 467 - 482

2. Luminescence, absorption and scattering of light in diamonds: Part I. Fluorescence

   • P. G. N. Nayar

   OriginalPaper Pages: 483 - 497

3. Effect of admixture of silver on the rectifying properties of Cu−Cu₂O cells

   • K. R. Dixit

   OriginalPaper Pages: 498 - 503

4. On the preparation of quartz ultrasonic oscillators

   • R. R. Bajpai
   • V. I. Vaidhianathan

   OriginalPaper Pages: 504 - 509

5. Pyrilium salts derived from 4-O-methyl resorcylic aldehyde

   • L. Ramachandra Row
   • T. R. Seshadri

   OriginalPaper Pages: 510 - 518

6. Some idiosyncratic numbers of Ramanujan

   • Hansraj Gupta

   BriefCommunication Pages: 519 - 520

7. Some relations between Bessel functions of third order and confluent hypergeometric functions

   • N. A. Shastri

   OriginalPaper Pages: 521 - 525

8. On the sum function connected with primitive roots

   • S. S. Pillai

   OriginalPaper Pages: 526 - 529

9. On m consecutive integers—III

   • S. S. Pillai

   OriginalPaper Pages: 530 - 533

10. Luminescence, absorption and scattering of light in diamonds: Part II. Phosphorescence

    • P. G. N. Nayar

    OriginalPaper Pages: 534 - 542

11. Raman effect in relation to crystal structure: Lattice oscillations

    • S. Bhagavantam

    OriginalPaper Pages: 543 - 563

12. Paper pulp from annual crops

    • P. Bhaskara Rama Murti

    BriefCommunication Pages: 564 - 565

13. Synthetical experiments in the group of sympathomimetics

    • S. Rajagopalan

    OriginalPaper Pages: 566 - 572

14. Errata

    • N. S. Nagendra Nath
    • E. V. Chalam

    Erratum Pages: 573 - 573