Philosophical Magazine

absorption Alternating Current aluminium amperes angle of incidence Angle of Phase apparatus aqueous vapour atmosphere axis barometer benzene brass bulb calculated calorimeter carbonic acid cell cent centim centimetres centre circuit coefficient coil constant copper correction corresponding curves deflexion density determined diameter disk dy dz earth electric equation error experiments expression formula frequency galvanometer give given glass heat horizontal I-magnetometer helix increase intensity iodine iron J. J. Thomson kathode length light lines magnetometer mean measured mercury metal method millim millimetres mirror mixture Modulus Modulus of Elasticity negative observed obtained Phil photo-electric plane plate platinum position pressure Prof quantity of carbonic radiation rays resistance resultant tones scale screw solutions spectrum square kilometre steel surface temperature theory thermometer tube variation velocity vertical vibrations volts water-vapour wattmeter wire zero zinc دو