TY - BOOK AU - Mennim,Eleanor TI - Transit circle: the story of William Simms, 1793 to 1860 SN - 1850721017 PY - 1992///?] CY - York, England PB - W. Sessions KW - Simms, William, KW - Royal Observatory, Greenwich KW - History KW - 19th century KW - fast KW - Astronomical instruments KW - England KW - Design and construction KW - Instrument manufacture KW - Artisans KW - Biography KW - Optical equipment KW - United Kingdom KW - Transit circle KW - Biography astronomical KW - Scientific instrument KW - Astronomy KW - Biographies KW - lcgft N1 - Includes bibliographical references (pages 280-282) and index ER -