1. Foreword

   • Amulya Kumar N. Reddy

   EditorialNotes Pages: 287 - 289

2. Hills, dams and forests. Some field observations from the Western Ghats

   • Madhav Gadgil

   OriginalPaper Pages: 291 - 301

3. A systems approach to rural housing

   • K. S. Jagadish

   OriginalPaper Pages: 305 - 318

4. Storage of solar energy

   • Theodore B. Taylor

   OriginalPaper Pages: 319 - 330

5. Cooking at low temperatures: energy and time requirements

   • S. C. Popali
   • N. R. Yardi
   • B. C. Jain

   OriginalPaper Pages: 331 - 337

6. Studies on sky-therm cooling

   • C. R. Prasad
   • G. S. Dutt
   • V. Kuppu Rao

   OriginalPaper Pages: 339 - 356

7. Studies in biogas technology. Part I. Performance of a conventional biogas plant

   • P. Rajabapaiah
   • K. V. Ramanayya
   • Amulya Kumar N. Reddy

   OriginalPaper Pages: 357 - 363

8. Studies in biogas technology. Part II. Optimisation of plant dimensions

   • D. K. Subramanian
   • P. Rajabapaiah
   • Amulya Kumar N. Reddy

   OriginalPaper Pages: 365 - 375

9. Studies in biogas technology. Part III. Thermal analysis of biogas plants

   • C. R. Prasad
   • S. R. C. Sathyanarayan

   OriginalPaper Pages: 377 - 386

10. Studies in biogas technology. Part IV. A novel biogas plant incorporating a solar water-heater and solar still

    • Amulya Kumar N. Reddy
    • C. R. Prasad
    • S. R. C. Sathyanarayan

    OriginalPaper Pages: 387 - 393

11. The design of rural energy centres

    • Amulya Kumar N. Reddy
    • D. K. Subramanian

    OriginalPaper Pages: 395 - 416

12. Erratum

    • J. -P. Vidal
    • G. Vidal-Valat
    • K. Kurki-Suonio

    Erratum Pages: 416 - 416