Rare Books

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. With tables of equation, and newer and better rules than any yet extant, how thereby precisely to adjust royal pendulums, and keep them afterwards, as near as possible to the apparent time. With a table of pendulums, shewing the beats that any length makes in an hour. A work very necessay [sic] for all that would understand the true way of rightly managing clocks and watches