Some new thoughts founded upon new principles, concerning a threefold motion of the earth. [electronic resource] : The rectification of the Kallender. The flowing and ebbing of the sea. The nature of the magnet. The variation of the compass. The cause of sea currents, and trade winds. The various motions of all the cœlestial orbs. The finding out the true place of the moon. And facilitating the discovery of the longitude. Not before thought of, or not offer'd to the World in this Manner. Most Humbly propos'd, and offer'd to the Consideration of the Learned and Ingenious, as Subjects of further Contemplation and Improvement. But in a more particular Manner to the Honourable, the Learned, and Ingenious Gentlemen of the Royal Society. By B. H. J.