A preliminary magnetic survey on the iron-ore formation of Addatigala, Andhra Pradesh A V S Murty OriginalPaper Pages: 89 - 94
Boron in the carbonate rocks of the Kajrahat formation Mirzapur district, Uttar Pradesh Rajendra P Sharma OriginalPaper Pages: 95 - 99
Differential thermal analysis and thermogravimetric studies of the Kaladgi (precambrian) argillites, Karnataka M J Chandrasekhara GowdaJ S VenugopalB V Govindarajulu OriginalPaper Pages: 101 - 107
Geomagnetic disturbance effects on equatorial spreadF R G RastogiG D VyasH Chandra OriginalPaper Pages: 109 - 113
On the variability of the position of the equatorial electrojet axis in India A V S MurtyD R K Rao OriginalPaper Pages: 133 - 137
The signature of the interplanetary magnetic field components on the low latitude geomagnetic field disturbance S R Prabhakaran Nayar OriginalPaper Pages: 139 - 145
Integrated production and effective loss rates in the ionosphere K N IyerR G Rastogi OriginalPaper Pages: 147 - 153
Ionization effects from cosmic sources of x-rays in the lower atmosphere D P SharmaU R RaoK Kasturirangan OriginalPaper Pages: 155 - 163
Diffraction of ATS-6 signals by isolated ionospheric irregularities—Some new aspects A I TrivediM R DeshpandeHari Om Vats OriginalPaper Pages: 165 - 172
Frequency dependence of equatorial ionospheric scintillations M R DeshpandeR G RastogiK Davies OriginalPaper Pages: 173 - 178