Frodsham, Charles, <br/><br/>
A history of the marine chronometer,  with the laws of isochronism of the balance spring, as connected with the higher order of adjustments of watches and chronometers; being an address read before the Institution of Civil Engineers on April 27, 1843. 

 - 40 pages 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chronometers.<br/>Chronometers.
<br/><br/><label>Subjects--Index Terms: </label>Adjust United Kingdom Marine chronometers Cert.chronometer adjusting testing advanced technical Timekeeper (general)