A copy of Porter's script for 'The Night Sky in September' on the Milky Way making spectacular viewing through field glasses; Vega, Cygnus and Lyra; Albireo, a double star, and other double stars, such as Alcor and Mizar and Epsilon Lyrae; studies of William Herschel and the parallax principal applied to double stars; the discovery that some double stars are not just line-of-sight phenomena, but stars physically related and revolving about one another; the universality of the law of gravitation; Bessel and the path of Sirius in space, the companion star Sirius B, spectroscopic doubles, the origins of double stars and the differences between them; multiple stars, Epsilon Lyrae, the Pole Star and Castor; the perturbation of stars and comets by other stars; the current neglect of double star work in Britain, Herschel's tradition and his dedication.