Select mechanical exercises: shewing how to construct different clocks, orreries, and sun-dials. On plain and easy principles. With several miscellaneous articles, and new tables. I, for expeditiously computing the time of any new or full moon within ... 6,000 years before and after the 18th century ... II. For graduating and examining the usual lines ... To which is prefixed, a short account of the life of the author / by James Ferguson.

Date:

1778