Maxwell, James Clerk, "On the Description of OvalCurves, and those having a plurality of Focus (geometry)|Foci". Proceedings of the Royal Society of Edinburgh, Vol. ii. 1846.
Maxwell, James Clerk, "Illustrations of the Dynamical Theory of Gases". 1860.
Maxwell, James Clerk, "On the Results of Bernoulli's Theory of Gases as Applied to their Internal Friction, their Diffusion, and their Conductivity for Heat".
Maxwell, James Clerk, "Ether", Encyclopedia Britannica, Ninth Edition (1875-89).