BORGNIS, GIUSEPPE ANTONIO. _Traité complet de mécanique appliquée aux arts._ Paris, 1818-1821, 9 vols. Contains several hundred finely detailed plates of machines. LABOULAYE, CHARLES. _Traité de cinématique ou théorie des mécanismes._ Paris, 1861 (ed. 2). This work was quoted frequently by Laboulaye's contemporaries. ROYAL SOCIETY OF LONDON. _Catalogue of Scientific Papers, 1800-1900, Author Index._ London, 1867-1902, and Cambridge, 1914-1925. ----. _Catalogue of Scientific Papers, 1800-1900, Subject Index._ London, 1909, vol. 2. This subject index was started in 1908, and by 1914 three volumes (the third in two parts) had been published; however, this subject index was never completed. Volume 2, titled _Mechanics_, has some 200 entries under "Linkages." It is interesting to note that both of the Royal Society's monumental catalogs grew out of a suggestion made by Joseph Henry at a British Association meeting in Glasgow in 1855. WEISBACH, JULIUS. _The Mechanics of the Machinery of Transmission_, vol. 3, pt. 1, sec. 2 of _Mechanics of Engineering and Machinery_, translated by J. F. Klein. New York, 1890 (ed. 2). MECHANISMS AND MECHANICIANS BARBER, THOMAS W. _Engineer's Sketch-Book._ London, 1890 (ed. 2). HERKIMER, HERBERT. _Engineer's Illustrated Thesaurus._ New York, 1952. PERIODICALS. _Artizan_, from 1843; _Practical Mechanic and Engineer's Magazine_, from 1841; _Repertory of Arts and Manufactures_, from 1794; _Newton's London Journal of Arts and Science_, from 1820. (The preceding periodicals have many plates of patent specification drawings.) _The Engineer_, November 10, 1933, vol. 156, p. 463, and _Engineering_, November 10, 1933, vol. 136, p. 525. (Recent English views questioning the utility of kinematics.) TATE, THOMAS. _Elements of Mechanism._ London, 1851. Contains figures from Lanz and Bétancourt (1808). WYLSON, JAMES. _Mechanical Inventor's Guide._ London, 1859. Contains figures from Henry Adcock, _Adcock's Engineers' Pocket-Book, 1858_. MECHANISMS IN AMERICA, 1875-1955 ALBERT, CALVIN D., AND ROGERS, F. D. _Kinematics of Machinery._ New York, 1931. Contains a bibliography that includes works not mentioned in the present paper. BARR, JOHN H. _Kinematics of Machinery._ New York, 1899. An early textbook. The author taught at Cornell University. BEGGS, JOSEPH S. _Mechanism._ New York, 1955. Contains an extensive and useful bibliography. BOTTEMA, O. "Recent Work on Kinematics," _Applied Mechanics Reviews_, April 1953, vol. 6, pp. 169-170. CONFERENCE ON MECHANISMS.