Mr. WATERHOUSE produced a new telescope, invented by Mr. Isaac NEWTON, professor of mathematics in the university of Cambridge, improving on previous telescopes by contracting the optical path. THE DUKE OF GUNFLEET, Dr. CHRISTOPHER WREN, and Mr. HOOKE, examining it, had so good opinion of it, that they proposed it be shown to the King, and that a description and scheme of it should be sent to Mons. HUYGENS at Paris, thereby to secure this invention to Mr. NEWTON.