1. "Collected Mathematical and Physical Papers," vol. i., pp. 329–357. From Cambridge Philosophical Society, March 11, 1850.
2. December 9, 1850, M. and P. P., vol. ii., pp. 1–144.
3. Camb. Phil. Soc., March, 1847, M. and P. P., vol. i., pp. 197–229, with supplement first published in the reprint M. and P. P., pp. 316–326.
4. M. and P. P., vol. i., pp. 141–157.
5. Camb. Phil. Soc., December 11, 1848, M. and P. P., pp. 56–81.