1. Errata

   • S. Pancharatnam

   Erratum Pages: 389 - 389

2. The tetrahedral carbon atom and the structure of diamond

   • G. V. Raman

   OriginalPaper Pages: 391 - 398

3. Temperature dependence of Photo-elastic constants in alkali halides

   • S. Bhagavantam
   • Y. Krishna Murty

   OriginalPaper Pages: 399 - 405

4. Studies in the isoquinoline series

   • T. R. Govindachari
   • Miss M. V. Lakshmikantham

   OriginalPaper Pages: 406 - 415

5. Emission spectrum of bromine excited in the presence of argon

   • Putcha Venkateswarlu
   • R. D. Verma

   OriginalPaper Pages: 416 - 421

6. Vertical ionospheric soundings at Ahmedabad during total solar eclipse on 30th June 1954

   • R. G. Rastogi

   OriginalPaper Pages: 422 - 429

7. The 97 kev. transition in the decay of gadolinium-153

   • M. G. Joshi
   • S. N. Subba Rao

   OriginalPaper Pages: 430 - 432

8. Polarographic behaviour of metals in ethanolamines

   • R. S. Subrahmanya

   OriginalPaper Pages: 433 - 442

9. Polarographic behaviour of metals in ethanolamines

   • R. S. Subrahmanya

   OriginalPaper Pages: 443 - 453

10. Investigations in non-aqueous solvents

    • T. Muniyappan
    • B. Anjaneyalu

    OriginalPaper Pages: 454 - 461

11. Errata

    • R. S. Subrahmanya

    Erratum Pages: i - i