1. The origin of the colours in the plumage of birds

   • C. V. Raman

   OriginalPaper Pages: 1 - 7

2. Hyperfine structure of some Hg II lines

   • B. Venkatesachar
   • L. Sibaiya

   OriginalPaper Pages: 8 - 13

3. The effect of the solvent in dipole moment measurements: The moment of ethylene bromide

   • M. A. Govinda Rau
   • B. N. Narayanaswamy

   OriginalPaper Pages: 14 - 27

4. Some multiplets in the Ag III spectrum

   • B. V. Raghavendra Rao

   OriginalPaper Pages: 28 - 33

5. The refractivity of liquid mixtures

   • G. Narasimhiah

   OriginalPaper Pages: 34 - 38

6. The spectrum of trebly ionised mercury

   • T. S. Subbaraya

   OriginalPaper Pages: 39 - 43

7. On the plotnikow effect or longitudinal light scattering in liquids

   • R. S. Krishnan

   OriginalPaper Pages: 44 - 47

8. Chemistry ofβ-aryl glutaconic acids.-Part I.

   • G. R. Gogte

   OriginalPaper Pages: 48 - 59

9. On the validity of the Raman-Banerjee analysis of the pianoforte hammer problem

   • K. Venkatachala Iyengar

   OriginalPaper Pages: 60 - 66