When was it proposed that electricity and magnetism were distinct effects by scientists William Gilbert ?
Descriptions of many of the experiments and discoveries of these early electrical scientists may be found in the scientific publications of the time , notably the " Philosophical Transactions " , " Philosophical Magazine " , " Cambridge Mathematical Journal " , " Young 's Natural Philosophy " , Priestley 's " History of Electricity " , Franklin 's " Experiments and Observations on Electricity " , Cavalli 's " Treatise on Electricity " and De la Rive 's " Treatise on Electricity " .