Wakened about two o’clock this morning with the noise of thunder, which lasted for an houre, with such continued lightnings, not flashes, but flames, that all the sky and ayre was light; and that for a great while, not a minute’s space between new flames all the time; such a thing as I never did see, nor could have believed had ever been in nature. And being put into a great sweat with it, could not sleep till all was over. And that accompanied with such a storm of rain as I never heard in my life. I expected to find my house in the morning overflowed with the rain breaking in, and that much hurt must needs have been done in the city with this lightning; but I find not one drop of rain in my house, nor any newes of hurt done. But it seems it has been here and all up and down the countrie hereabouts the like tempest, Sir W. Batten saying much of the greatness thereof at Epsum. Up and all the morning at the office. At noon busy at the ‘Change about one business or other, and thence home to dinner, and so to my office all the afternoon very busy, and so to supper anon, and then to my office again a while, collecting observations out of Dr. Power’s booke of Microscopes, and so home to bed, very stormy weather to-night for winde. This day we had newes that my Lady Pen is landed and coming hither, so that I hope the family will be in better order and more neate than it hath been.