'On the Equilibrium Configurations and motion of a tidally distorted mass of fluid' Handwritten manuscript. Jeans refers to himself on the first page as FRS, dating the manusript to after 1906. Given papers written by Jeans in 1915 ( 'On the Potential of Ellipsodial Bodies, and the Figures of Equilibrium of Rotating Liquid Masses') and 1916 ('On the Instability of the Pear-Shaped Figure of Equilibrium of a Rotating Mass of Liquid'), this material is likely to date from that period. c.1915