Show i MAGNETISM OF THE EARTH Claim of o a Discovery as to t the e Cause of Its Production i WHEEL DOES TIlE BUSINESS Ur Hr in nyi that Ito Baltimore Md Jan A Rowland Professor of at the Johns Hopkin universIty hu hij de a 11 discovery of great importance e to the scientific world It Is In the nature of an explanation ot f the cause ClUte of the mog mag of earth oarth Jt It was nearly a year ago ngo Dr Rowland commenced his experiments lIe was attracted to th the subject tie hu says by the lack of or theor theory or the earths magnetism The experiments ha have 1 been continued by Dr Rowland hlA hi nta A i their efforts have hae recently peon een Ue tIve ot of satIsfactory results result whIch will soon be reported tUII fully for the beneat or of The apparatus used b by Dr Rowland J is II a metal wheel revolved on a shaft by m means of an electric motor The wheel Is wound with lIh several mites of fine wire and In this magnetism m he 19 developed when the lie wheel Is revolved About the t is a casing or of oC brass at II a of at about an In inch b from rom Its but bUI leaving an air or ether space between tween which hU be said ald to represent layers ot of atm s phere bout about the earth With this simple apparatus Dr now flow land hand is working to show that the tester tuter the revolution of the wheel the more mor magnetism will be developed lie He bus shown shon already that magnetism Is Itro In this revolvIng body and al l though upon such Q a mall email scale Inthe in the laboratory ex experiments Dr Rowland says as he Is convinced fd that the principle holds good for Cor the earth and other othor heavenly bodies s as they revolve space Ot Of cour course the Immense weight and great speed of these thue bodies bodle add to the amount of magnetism which th they product produce Dr Rowland Howland however Is so highly pleased with the result so fAr d that he will continue the work for Some time to come |