Deaths from lightning, statistics of 170–175 De la Rive (Professor) on the origin of atmospheric electricity 71 Dumdum, India, destruction of a magazine by lightning at 92 E Earth connection, the French methods of arranging the 131 ———— general description of 198–217 ———— Benjamin Franklin on 199 ———— Rev. Dr. Hemmer on 200 ———— Professor Landriani on 201 Electrical machines, Otto von Guericke’s 2 ———— Sir Isaac Newton’s 2 ‘Electrical tubes,’ the mania for 9, 10 Electricity, the early history of 1 ———— the discovery of the instantaneity of its movement 8 ———— positive and negative, Benjamin Franklin on 26 ‘Electron’ or amber, and its properties 1 Electro-magnetism, Hans Oersted’s researches in 57 England and Wales, deaths from lightning in 170 England, lightning protection in 140–168 F Fatalities and accidents from lightning 169–197 Fires caused by lightning in Russia 171 Folkes (Martin), experiments in electricity 7 France, the ‘Instruction’ of the Paris Academy on lightning-conductors 75 ———— the general adoption of lightning-conductors in 77 ———— the protection of powder-magazines in, from lightning 82 ———— lightning protection in 125 ———— neglect of lightning-conductors in 125 ———— account of the details of the French system 126 ———— the ‘area of protection’ theory in 126 ———— the ‘ridge-circuit’ as used in 129 ———— deaths from lightning in 171