Horological disquisitions concerning the nature of time, and the reasons why all days, from noon to noon, are not alike twenty four hours long : In which appears the impossibility of a clock's being always kept exactly true to the sun. ... /
Smith, Johnactive 1673-1680.
London : Printed for Richard Cumberland ... ,
1694.
ESTC
Wing (2nd ed.)
Horology
Clock and watch making
Time, Equation of
England London.