[To THE EDITOR OP THE " SPECTATOR.") SIR, —It may he
true that, as you say, " the want of anything which can be called clear and accurate knowledge in regard to lightning makes it impossible to answer" your question about lightning-conductor's " in a satisfactory manner." But I hope you will allow me to assure your correspondent " A. F. P.," with as much of " authority " as can be claimed by one who has twice during the last ten days had the house struck over his head, that it is certainly not possible to watch a thunderstorm from the closed window of a house without danger. A flash which struck the house so badly dazzled the eyes of the only member of our party who happened to be looking out of a closed window that be did not fully recover from the effects for several days.—I am, Sir, &c., E. J. W.