Philosophical Magazine

angle appears applied approximately assumed atmosphere atomic axis background bands becomes brightness calculated caused cent charge chemical circuit compared considered constant containing continuous contrast corresponding curves density depends determined direction effect electric electron emission emitted energy equal equation error experimental experiments expression fact factor field formula furnace give given greater heat Hence hydrogen increase indicates intensity known length light lines lower magnetic maximum mean measured method mixture molecules nature necessary nucleus object observed obtained orbits passing Phil plane plate position possible practically present pressure probable problem radiation ratio reading red fringe relation relative respectively scale shown solution space spectrum surface TABLE taken temperature term theory tube unit vapour various visibility volume zero