Letter, regarding 'Addendum to the note on the spectrum of Nova Aurigae' from Joseph Norman Lockyer to the Royal Society Lockyer writes: 'Since the observations of Wednesday (Feb. 3), recorded in a preliminary note [see PP/18/24], the weather precluded any further work till last night (Feb. 7). Two more photographs were taken and eye observations made.' Annotations in pencil and ink. Subject: Astronomy / Spectroscopy Received and read 11 February 1892. A version of this paper was published in volume 50 of the Proceedings of the Royal Society as 'Note on the spectrum of nova aurigæ'. 8 February 1892