William Addison, "On some peculiar modifications of the Force of cohesion, with reference to the Forms and structure of Clouds - Films, & Membranes", RS MS AP 27.13. This was read to the Royal Society on 19 June 1845 and a short abstract was published in Proc.Roy.Soc., 1845, 5: 560. The paper was placed in the Archives. RS MS CMB 90c, 1 December 1845.