The Horological Journal, Volumes 5 à 7

9 July amount assay Astronomer Astronomer Royal Auxiliary compensation axis balance balance springs ball barometer body brass BRITISH HOROLOGICAL INSTITUTE centre Chairman chronometer Clerkenwell clock construction Council cupel Devonport dial electricity equal Equation error escapement exhibited fixed force French galvanic gentlemen give gold Goldsmiths Gray's Inn Road Greenwich hand Horological Journal horologists impulse inches instrument invention iron July 19 July 23 June length lever Lever Escapement London magnet makers manufacture marine chronometers means measure mechanical meeting ment mercury Messrs metal metric system months motion observations Observatory Office ordinary pass pendulum placed plane position present pulley regulated remarks remontoir Royal Royal Observatory screw signals spring stamping steel street temperature thermometer Thurs tion trade Tues watch watchmakers weather weight wheel wind wire