He was also the author of important papers in which he extended to complex quadratic forms many of Gauss's investigations relating to real quadratic forms. After 1864 he devoted himself chiefly to elliptic functions, and numerous papers on this subject were published by him in the Proc. Lond.
An important notion in the theory of linear operators in general is that of MacMahon's multilinear operator (" Theory of a Multilinear partial Differential Operator with Applications to the Theories of Invariants and Reciprocants," Proc. Lond.
Forsyth, Proc. Lond.
Hopkinson in the Proc. Lond.
See obituary notices in the Proc. Lond.
Chalmers also took part in the Junius controversy, and in The Author of Junius Ascertained, from a Concatenation of Circumstances amounting to Moral Demonstration, Lond.
Among them may be mentioned Collection of Treaties between Great Britain and other Powers, Lond.
8vo; Vindication of the Privileges of the People in respect to the Constitutional Right of Free Discussion, &c., Lond.
17 9 6, 8vo, published anonymously; A Chronological Account of Commerce and Coinage in Great Britain from the Restoration till 1810, Lond.
1810, 8vo; Opinions of Eminent Lawyers on various points of English Jurisprudence, chiefly concerning the Colonies, Fisheries, and Commerce of Great Britain, Lond.
8vo; Comparative Views of the State of Great Britain before and since the War, Lond.
Very interesting also are Thomas Smart Hughes, Travels in Greece and Albania (2 vols., 2nd ed., Lond.
during the years 1809 and 1810 (Lond., 4to, 1813, a new ed., 2 vols., 1855); William Martin Leake, Travels in Northern Greece (4 vols., Lond.
Soc. (Lond.) Bot.
Tylor, Primitive Culture (4th ed., Lond.
The latter author's Lectures on the Early History of the Kingship (Lond.
Robertson Smith, Lectures on the Religion of the Semites (2nd ed., Lond.
Lang, Myth, Ritual and Religion (2nd ed., Lond.
1899), and Magic and Religion (Lond.
Hartland, The Legend of Perseus (Lond.
Crawley, The Mystic Rose (Lond.
1902), and The Tree of Life (Lond.
The present writer owes something to Goblet d'Alviella, Hibbert Lectures (Lond.
Gillen, The Native Tribes of Central Australia (Lond.
1899); The Northern Tribes of Central Australia (Lond.
Howitt, The Native Tribes of South-Eastern Australia (Lond.
Ellis, The Tshi-Speaking Peoples of the Gold Coast (Lond.
1897); The Ewe-Speaking Peoples of the Slave Coast (Lond.
1890); The Yoruba-Speaking Peoples of the Slave Coast (Lond.
Kingsley, Travels in West Africa (Lond.
1898), and West African Studies (Lond.
Crooke, The North-West Provinces of India (Lond.
Burnet, Early Greek Philosophy (Lond.
Benn, Greek Philosophers (Lond.
Fairbanks, First Philosophers of Greece (Lond.
51; Joseph Ritson, Fairy Tales (Lond.
lxv., 1865), and Cayley, " On the Transformation of Plane Curves " (Proc. Lond.
A construction of prisms by Nachet is now almost forgotten, while on the contrary an extremely simple dividing prism published by Wenham (Lond.
yearbook of the diocese of London (1940 to date) Lysons, Environs of Lond.
Frazer, The Golden Bough (2nd ed., Lond.
Yearbook of the diocese of London (1940 to date) Lysons, Environs of Lond.
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