The description and use of a table-clock upon a new construction, going by a weight eight days; with a Half-Second Pendulum of an invariable Length, and thereby dividing Time into Hours, Minutes and Half-Seconds, with all the Accuracy possible. With An Account of the particular Principles, derived from Nature and Art, upon which this new Mechanism depends. By B. Martin
  
  
    
      
    
    
      - People / Organizations
 
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      - Imprint
 
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        London]: Invented, made, and sold by the author, in Fleet-Street, No. 171, [1770?
        
      
 
    
    
    - Publication year
 
    - 1770
 
    
      - ESTC No.
 
      - T10168
 
    
    - Grub Street ID
 
    - 155535
 
    
      - Description
 
      - 10,[2]p.,plate ; 4°.
 
    
    
      - Note
 
      - With a final leaf of advertisements. -Date from p.7 of the text.