1983 RASTOGI, Ram Gopal (b. 1929) PhD,FNA,FASc, Visiting Professor, Physical Research Laboratory,Ahmedabad; Res. 22B Lad Housing Society, Sandesh Press Road, Badakdev, Ahmedabad – 380054; Tel: (079) 26314055(O), 26850958(R), 09624924030(M); Fax: 26301502; Email: ; ; Sp. Geomagnetism/Aeronomy/Space Physics.