1. High level radiosonde ascents at hyderabad during January to April, 1961

   • Anna Mani
   • G. P. Srivastava
   • N. Narayana Iyer

   OriginalPaper Pages: 1 - 8

2. The probable iodine molecular lasers in the violet and ultraviolet regions

   • Putcha Venkateswarlu
   • D. Ramachandra Rao

   OriginalPaper Pages: 9 - 12

3. Performance of a large air cerenkov counter used to distinguish protons and pions in the cosmic radiation upto an energy of 45 GeV

   • A. Subramanian
   • S. D. Verma

   OriginalPaper Pages: 13 - 20

4. Temperature dependence of the knight shift of²⁰⁷Pb resonance in Na₁₅Pb₄ intermetallic compound

   • D. L. Radhakrishna Setty
   • B. D. Mungurwadi

   OriginalPaper Pages: 21 - 23

5. Temperature dependence of the photoelastic behaviour of crystals—Part I

   • K. V. Krishna Rao
   • V. G. Krishna Murty

   OriginalPaper Pages: 24 - 35

6. Infra-red and raman spectra of BaCl₂.2H₂O and BaCl₂.2D₂O

   • G. M. Venkatesh
   • P. Neelakantan

   OriginalPaper Pages: 36 - 43

7. Raman spectrum of dimethyl sulfoxide (DMSO) and the influence of solvents

   • A. Selvarajan

   OriginalPaper Pages: 44 - 50

8. Three examples of_ΛBe⁷ hyperfragments

   • K. N. Chaudhari
   • S. N. Ganguli
   • M. S. Swami

   OriginalPaper Pages: 51 - 56