1. Time structure of the hadronic component of extensive air showers

   • S. C. Tonwar
   • G. T. Murthy
   • B. V. Sreekantan

   OriginalPaper Pages: 203 - 229

2. Raman spectrum of Cs₂So₄ using Ar⁺ laser excitation

   • Putcha Venkateswarlu
   • Herbert P. Broida

   OriginalPaper Pages: 230 - 242

3. Molecular force fields for some anions and molecules of MX₆ type (X = Cl, Br)

   • S. N. Rai
   • S. N. Thakur
   • D. K. Rai

   OriginalPaper Pages: 243 - 254

4. Errata

   • K. N. Katyal

   Erratum Pages: N1 - N1