Dash, Joan, <br/><br/>
The longitude prize / 
Joan Dash ; pictures by Dusan Petricic. 
 - First edition. 
 - 200 pages :  illustrations ;  21 cm 
<br/><br/> "Frances Foster books." 
<br/><br/>Includes bibliographical references (pages 193-194) and index. 
<br/><br/> The story of John Harrison, inventor of watches and clocks, who spent forty years working on a time-machine which could be used to accurately determine longitude at sea. 
<br/><br/> Robert F. Sibert Informational Book Honor, 2001. 
<br/><br/><label>ISBN: </label>0374346364 9780374346362 
<br/><br/><label>LCCN: </label>97044257  
<br/><br/><label>Subjects--Personal Names: </label><br/>Harrison, John, 1693-1776 --Juvenile literature.<br/>Harrison, John, 1693-1776. <br/>Harrison, John, 1693-1776. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chronometers--History--Juvenile literature.<br/>Longitude--Measurement--History--Juvenile literature.<br/>Clock and watch makers--Great Britain--Biography--Juvenile literature.<br/>Clocks and watches.<br/>Inventors.<br/>Chronometers.<br/>Clock and watch makers.<br/>Longitude--Measurement.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Britain.
<br/><br/><label>Subjects--Index Terms: </label>History United Kingdom Harrison Longitude Biography juvenile Timekeeper (general) 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Inventors.<br/>Literature.<br/>Biographies.<br/>Biographies.<br/>History.<br/>Juvenile works.<br/>Literature.
<br/><br/><label>National Library of Medicine Call No.: </label>681.1 Das