Painting lightning-conductors 129 Paratonnerres, the Paris Academy ‘Instruction’ on 75 Paris Academy, the ‘Instruction’ of the, on lightning-conductors 75 Paris, death of two persons by the fall of a ‘tige’ from steeple of St. Gervais 146 Peltier (Jean Athanase), his researches in electricity 71 ‘Physico-mechanical experiments,’ Hauksbee’s 3 Pliny the Elder, on the observation of thunderstorms 62 ‘Points _v._ balls,’ the controversy of 40 ‘Poor Richard’s Almanac’ and lightning-conductors 28 Pope, the, on electrical experiments on monks 7 Pouillet (Professor Claude), his experiment on the conductivity of metals 54 ———— on lightning-conductors 78 Powder-magazines in France, the protection of, from lightning 82 ———— Sir William Snow Harris’s instruction for protecting 93 Pringle (Sir John) his resignation of the Presidency of the Royal Society in 1777 41 Protestantism and lightning-conductors 43 Prussia, statistics of deaths from lightning in 170 Purfleet, building struck by lightning in 1777 41 R Rarefied air, the conductivity of 142, 149 Raven (Mr.), his house in Carolina, U.S., struck by lightning 159 ———— Arago’s comments thereon 159 Réaumur (Rene Antoine de) Musschenbroek’s letter to, on the Leyden Jar 5 ‘Return strokes’ of lightning 70 Richmann (Professor G. W.), his experiments on electricity 31 ———— his death thereby 32 ‘Ridge Circuit’ as used in France 129 Robespierre and lightning-conductors 36, 43 Roman Catholicism and lightning-conductors 42, 44 Rosenburg, Austria, church repeatedly struck by lightning at 64 Rosstall, Bavaria, church struck by lightning at 105 ———— Professor Kastner’s report thereon 106 Royal Navy, vessels of the, destroyed by lightning 88 Royal Society and Benjamin Franklin 17 Russia, statistics of deaths from lightning in 171 S