Sciothericum telescopicum : or, a new contrivance of adapting a telescope to an horizontal dial for observing the movement of time / by William Molyneux. - Molyneux, William, 1656-1698 (Printed by Andrew Crook and Samuel Helsham, at the Printing-House on Ormond-Key; and are to be sold by W. Norman in Dame-street, and S. Helsham and El. Dobson Booksellers in Castle-street, 1686)