7 June 1683 – 13 June 1683

On my return home from the Royal Society, I found Mr. Wilbraham, a young gentleman of Cheshire.

The Lord Dartmouth was elected Master of the Trinity House; son to George Legge, late Master of the Ordnance, and one of the grooms of the bedchamber; a great favorite of the Duke's, an active and understanding gentleman in sea affairs.

To our Society, where we received the Count de Zinzendorp, Ambassador from the Duke of Saxony, a fine young man; we showed him divers experiments on the magnet, on which subject the Society were upon.