LEVER ESCAPEMENT, THE—T. J. Wilkinson. Technical Publishing Co., Philadelphia, Pennsylvania, 1916. L'HORLOGERIE ASTRONOMIQUE ET CIVILE; SES USAGES—SES PROGRÈS SON ENSEIGNEMENT À PARIS—A. H. Rodanet. Vve. C. Dunod, Paris, France, 1887. L'INDUSTRIE HORLOGÈRE AUX ÉTATS UNIS—George Blondel. Soc. de géographie commerciale de Paris. Bull. mensuel. Paris, France, 1917. MANIPULATION OF STEEL IN WATCHWORK—John J. Bowman. Jewelers Circular Publishing Co., New York City, 1903. MODERN CLOCK, THE—Ward L. Goodrich. Hazlitt & Walker, 1905. MODERN HOROLOGY—Claudius Lanier. Trans. by J. Tripplin. E. Rigg. (Second Edition.) Crosby Lockwood & Co., London, England, 1887. MODERN HOROLOGY, TREATISE ON—Claudius Lanier. Translation. MODERN METHODS IN HOROLOGY—Grant Hood. Kansas City, Jeweler and Optician, Kansas City, Missouri, 1904. NOUVEAU RÉGULATEUR DES HORLOGES DES MONTRES ET DES PENDULES; OUVRAGE MIS À LA PORTÉE DE TOUT LE MONDE ET ORNÉ DE FIGURES—Ferdinand Berthoud and L. Janvier, Paris, France, 1838. OLD CLOCK BOOK—Mrs. N. Hudson Moore. Frederick A. Stokes & Co., New York City, 1911. OLD CLOCKS AND WATCHES AND THEIR MAKERS—F. J. Britten. B. T. Batsford, London, England, 1899. Revised and Enlarged, 1914. OLD ENGLISH CLOCKS—F. J. Britten. Lawrence & Jellicoe. London, England, 1907. OLD SCOTTISH CLOCKMAKERS—John Smith. W. J. Hay, Edinburgh, Scotland, 1903. SHORT TALKS TO WATCHMAKERS—C. T. Higginbotham. (South Bend Watch Co.) 1912. (Pamphlet.) SIMPLE AND MECHANICALLY PERFECT WATCH, A—Moritz Grossman, G. K. Hazlitt & Co., Chicago, Illinois, 1891. SUN-DIALS, BOOK OF—Mrs. Alfred Gatty. Bell and Daldy, London, England, 1872. SUN-DIALS AND ROSES—Alice Morse Earle. Macmillan Co., London, New York City, 1902. SUR LES ANCIENS HORLOGES ET SUR JACQUES DE DONDIS SURNOMMÉ HOROLOGIUS—Falconet Camille. In Liber C. Col. D. V. 16, 1838. TIME AND CLOCKS—A DESCRIPTION OF ANCIENT AND MODERN METHODS OF MEASURING TIME—(Sir) H. H. Cunnynghame, M.A., C.B., M.I.E.E. Archibald Constable & Co., London, England, 1906. TIME AND ITS MEASUREMENT—James Arthur. (Reprinted from _Popular Mechanics Magazine_.) Chicago, Illinois, 1909. TIME AND TIMEKEEPERS—L. and A. Mathey. (Pamphlet.) 1877. TIME AND TIMEKEEPERS—Adam Thomson. T. and W. Boone, London, England, 1842. TIME AND TIME TELLERS—J. W. Benson. Robert Hardwicke, London, England, 1875. TIMEKEEPER INVENTED BY THE LATE THOMAS MUDGE, THE—By Thomas Mudge—his son. Printed for the author, London, England, 1799. TOWER CLOCK AND HOW TO MAKE IT—E. B. Ferson. Hazlitt and Walker, Chicago, Illinois, 1903. UNIVERSAL CLOCK ADJUSTER—Eleazar Thomas Perdue. Richmond, Virginia, 1877. WATCH, THE—Henry F. Piaget. Third edition. A. N. Whitehorne, New York City, 1877.