^{page 333 note *} From the University Library lists for this period it appears that Maxwell perused at home Fourier's Théorie de la Chalcur, Monge's Géométrie Descriptive, Newton's Optics, Willis's Principles of Mechanism, Cauchy's Calcul Différentiel, Taylor's Scientific Memoirs, and many other works of a high order. Unfortunately no record is kept of books consulted in the reading. room.

^{page 336 note *} All we can positively say to be erroneous is some of the principal arguments by which Brewster's view was maintained, for the subjective character of the triplicity has not been absolutely demonstrated.