English School, (17th century). Medium: engraving. Date: 1686. Horology is the science of measuring time and Dialling relates specifically to the creation of sundials. 'The Gentleman's Recreation' was a two part work, consisting of an Encyclopaedia of the Arts and Sciences and a treatise on outdoor pursuits for gentlemen. Compiled and published by Richard Blome (1635-1705) Provenance: Private Collection.