From the Preface: "Volume 3 deals very largely with the Author's enumerative method of obtaining the complete system of concomitants of a system of quantics, with the help of generating functions; the brief but very luminous papers ... on the Constructive Theory of Partitions ... his Commemoration day Address at Johns Hopkins University (1877) ... investigations on Chemistry and Algebra, the paper on Certain Ternary Cubic-Form Equations, and the paper on Subinvariants and Perpetuants."