Open and closed Robertson-Walker-type Lyttleton-Bondi universes S. D. MaharajA. Beesham OriginalPaper Pages: 33 - 37
Effect of solar pressure on the motion and stability of the system of two inter-connected satellites in an elliptical orbit Sachindra Kumar SinhaR. B. Singh OriginalPaper Pages: 49 - 54
Thermosolutal instability of a partially-ionized plasma R. C. SharmaNeela Rani OriginalPaper Pages: 55 - 63
Anisotropic radiation transfer in a sphere with internal source S. A. El WakilA. El SheikhA. El Shahat OriginalPaper Pages: 65 - 72
The vacuum Friedmann-type solutions in Barber's theory of gravitation S. D. MaharajA. Beesham OriginalPaper Pages: 73 - 76
Birkhoff's theorem in a conformally-invariant scalar field theory D. R. K. Reddy OriginalPaper Pages: 85 - 88
Magnetogravitational instability of an infinite homogeneous rotating plasma through a porous medium with finite electrical and thermal conductivities M. K. VyasR. K. Chhajlani OriginalPaper Pages: 89 - 104
A photometric analysis of the eclipsing binary system X Pictoris Carlson R. ChamblissPeter K. Detterline OriginalPaper Pages: 105 - 117
Maintenance of spiral arms and galactic magnetic field configurations J. P. Vallée OriginalPaper Pages: 119 - 123
Light curve variations of er Vulpeculae in 1984 and 1985 observing seasons S. Evren OriginalPaper Pages: 125 - 130
An analysis of the spectrum of Alpha Ursae Minoris B. B. SanwalB. S. RautelaG. C. Joshi OriginalPaper Pages: 131 - 135
Three-colours photoelectric observations of W UMA-system BB Pegasi Nabil S. Awadalla OriginalPaper Pages: 137 - 159
A plane-symmetric universe in the presence of zero-mass scalar fields D. R. K. Reddy OriginalPaper Pages: 161 - 164
Turbulent generation of magnetic fields in astrophysical jets V. V. GvaramadzeJ. G. LominadzeA. M. Shukurov OriginalPaper Pages: 165 - 174
Interstellar extinction by cometary organic grain clumps F. HoyleN. C. Wickramasinghe OriginalPaper Pages: 191 - 203
A diatom model of dust in the Trapezium nebula Q. MajeedN. C. WickramasingheS. Al-Mufti Letter to the Editor Pages: 205 - 207