Two copies of Porter's script for 'The Night Sky in December' on Venus and Jupiter in the morning sky, with Saturn coming into view; Mars, an evening star; the 17th and 18th-century representations of Orion in the star atlases of Flamsteed and Bayer; judgement of size in the night sky; the types and distance of stars in Orion; Alnilan, Rigel and Betelgeuse, Betelgeuse being a red giant, and the very high energy output of the young star Rigel; the Orion nebula (a birthplace of stars), its incandescent gas and dust, and the appearance of two new stars in the nebula; and the recommendation of an astronomy book for Christmas. The first copy of the script is annotated.