1. Extraction of signals from noise through Wiener filtering

   • J. R. Arora

   OriginalPaper Pages: 5 - 18

2. Magneto-Thermo-Elastic Disturbances in a semi-infinite bar of variable cross-section

   • N. G. Mookerjee

   OriginalPaper Pages: 19 - 25

3. Spectra of seismic waves of Matsushiro micro-earthquakes

   • H. N. Srivastava
   • J. Drakopoulos
   • T. Terashima

   OriginalPaper Pages: 26 - 35

4. Torsional vibration of a twisted composite cylindrical shell of cylindrically aeolotropic materials

   • Jayasri Datta

   OriginalPaper Pages: 36 - 44

5. Problem on the vibrations of plates

   • Sasadhar De

   OriginalPaper Pages: 45 - 51

6. On disturbances in an inhomogeneous viscoelastic bar of Reiss type in a magnetic field

   • Mala Mahalanabis

   OriginalPaper Pages: 52 - 61

7. Wave propagation through a medium containing anisotropic permeability

   • S. S. De
   • R. M. Khan

   OriginalPaper Pages: 62 - 65

8. Thermoelastic stresses in an infinitely extended aelotropic thin plate due to a sudden heating of the boundary of a circular hole in it

   • Bimalendu Das

   OriginalPaper Pages: 66 - 73

9. T-phases from Atlantic earthquakes

   • Markus Båth
   • Mohammad Shahidi

   OriginalPaper Pages: 74 - 114

10. Refraction of elastic waves into a medium of lower velocity — Pseudospherical waves

    • V. Červený
    • J. Kozák
    • I. Pšenčík

    OriginalPaper Pages: 115 - 132

11. An experiment on the magnetic hysteresis and remanence of Rajmahal basalts

    • A. K. Rakshit
    • S. K. Dutt

    OriginalPaper Pages: 133 - 138

12. Interpretation of total intensity magnetic anomalies when anomalous field is arbitrarily large

    • M. N. Ramanaiah Chowdary

    OriginalPaper Pages: 139 - 149

13. The Power Spectral Density technique applied to micropulsation analysis

    • W. F. Stuart
    • Vicki Sherwood
    • Sheena M. Macintosh

    OriginalPaper Pages: 150 - 164

14. Depression in the low-latitude horizontal intensity due to quiet-time ring current

    • B. N. Bhargava
    • A. Yacob

    OriginalPaper Pages: 165 - 168

15. Electromagnetic response of a covered inhomogeneous permeable conductor in time domain

    • Chandra P. Gupta
    • Upendra Raval

    OriginalPaper Pages: 169 - 184

16. A new dual frequency moving source-receiverem unit

    • Sakti K. Biswas

    OriginalPaper Pages: 185 - 189

17. Jet stream activity detected as wavelike disturbances at mid-latitude ionosphericF region heights

    • G. B. Goe

    OriginalPaper Pages: 190 - 206

18. Effects of missing data on zonal kinetic energy calculations

    • Norman W. Stoldt

    OriginalPaper Pages: 207 - 218

19. Active regions and the large scale flow in the solar photosphere

    • Victor P. Starr
    • Hans J. E. Fischer

    OriginalPaper Pages: 219 - 232