DISCOVERY OF A NOVA IN CYGNUS.—Mr. W. F. Denning, of Bristol, writes that on the evening of August 20 he observed a star previously unknown to him in the northern region of Cygnus. He has made it a practice during the last few years of carefully searching for these objects while he has been watching for meteors. The object when discerned on August 20 was of about 31/2 magnitude, and its rough position was in R.A. 19h. 56m. and declination 531/2° N. It formed a little triangle with the stars ψ and d (20) Cygni. On referring to star-charts, etc., Mr. Denning quite failed to identify the object in question, and therefore concluded it to be a new star.