On some Dynamical Conditions


 * On some Dynamical Conditions applicable to Le Sage's Theory of Gravitation (1877)
 * On some Dynamical Conditions applicable to Le Sage's Theory of Gravitation, No. II (1877)
 * Application of the Kinetic Theory of Gases to Gravitation, No. III (1878)
 * The Bearing of the Kinetic Theory of Gravitation on the Phenomena of "Cohesion" and "Chemical Action," together with the important connected Inferences regarding the existence of Stores of Motion in Space, No. IV (1878)